{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T20:10:53Z","timestamp":1774642253742,"version":"3.50.1"},"reference-count":84,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2025,3,20]],"date-time":"2025-03-20T00:00:00Z","timestamp":1742428800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000780","name":"European Union\u2019s Horizon 2020 research and innovation program","doi-asserted-by":"publisher","award":["101099487"],"award-info":[{"award-number":["101099487"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000780","name":"European Union\u2019s Horizon 2020 research and innovation program","doi-asserted-by":"publisher","award":["UIDB\/05380\/2020"],"award-info":[{"award-number":["UIDB\/05380\/2020"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia (FCT) under HE Lab R&amp;D Unit","award":["101099487"],"award-info":[{"award-number":["101099487"]}]},{"name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia (FCT) under HE Lab R&amp;D Unit","award":["UIDB\/05380\/2020"],"award-info":[{"award-number":["UIDB\/05380\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Bioplastics have been presented as a sustainable alternative to products derived from fossil sources. In response, industries have developed innovative products using biopolymers across various sectors, such as food, packaging, biomedical, and construction. However, consumer acceptance remains crucial for their widespread adoption. This study aims to explore public sentiment toward bioplastics, focusing on emotions expressed on Reddit. A dataset of 5041 Reddit comments was collected using keywords associated with bioplastics and the extraction process was facilitated by Python-based libraries like pandas, NLTK, and NumPy. The sentiment analysis was conducted using the NRCLex, a broadly used lexicon. The overall findings suggest that trust, anticipation, and joy were the most dominant emotions in the time frame 2014\u20132024, indicating that the public emotional response towards bioplastics has been mostly positive. Negative emotions such as fear, sadness, and anger were less prevalent, although an intense response was noted in 2018. Findings also indicate a temporal co-occurrence between significant events related to bioplastics and changes in sentiment among Reddit users. Although the representativeness of the sample is limited, the results of this study support the need to develop real-time monitoring of the public\u2019s emotional responses. Thus, it will be possible to design communication campaigns more aligned with public needs.<\/jats:p>","DOI":"10.3390\/polym17060823","type":"journal-article","created":{"date-parts":[[2025,3,20]],"date-time":"2025-03-20T12:23:11Z","timestamp":1742473391000},"page":"823","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Unpacking Online Discourse on Bioplastics: Insights from Reddit Sentiment Analysis"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-2905-5096","authenticated-orcid":false,"given":"Bernardo","family":"Cruz","sequence":"first","affiliation":[{"name":"Digital Human-Environment Interaction Lab\u2013HEI-Lab, Lus\u00f3fona University, 1749-024 Lisbon, Portugal"}]},{"given":"Aimilia","family":"Vaitsi","sequence":"additional","affiliation":[{"name":"Digital Human-Environment Interaction Lab\u2013HEI-Lab, Lus\u00f3fona University, 1749-024 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4012-0280","authenticated-orcid":false,"given":"Samuel","family":"Domingos","sequence":"additional","affiliation":[{"name":"Digital Human-Environment Interaction Lab\u2013HEI-Lab, Lus\u00f3fona University, 1749-024 Lisbon, Portugal"}]},{"given":"Catarina","family":"Possid\u00f3nio","sequence":"additional","affiliation":[{"name":"Digital Human-Environment Interaction Lab\u2013HEI-Lab, Lus\u00f3fona University, 1749-024 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2631-998X","authenticated-orcid":false,"given":"S\u00edlvia","family":"Lu\u00eds","sequence":"additional","affiliation":[{"name":"Digital Human-Environment Interaction Lab\u2013HEI-Lab, Lus\u00f3fona University, 1749-024 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-6058-2771","authenticated-orcid":false,"given":"Eliana","family":"Portugal","sequence":"additional","affiliation":[{"name":"Digital Human-Environment Interaction Lab\u2013HEI-Lab, Lus\u00f3fona University, 1749-024 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8587-5513","authenticated-orcid":false,"given":"Ana","family":"Loureiro","sequence":"additional","affiliation":[{"name":"Digital Human-Environment Interaction Lab\u2013HEI-Lab, Lus\u00f3fona University, 1749-024 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2489-4307","authenticated-orcid":false,"given":"Sibu","family":"Padmanabhan","sequence":"additional","affiliation":[{"name":"School of Chemistry, Trinity College Dublin, D02 Dublin, Ireland"},{"name":"Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, D02 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7686-4046","authenticated-orcid":false,"given":"Ana Rita","family":"Farias","sequence":"additional","affiliation":[{"name":"Digital Human-Environment Interaction Lab\u2013HEI-Lab, Lus\u00f3fona University, 1749-024 Lisbon, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"100028","DOI":"10.1016\/j.bioeco.2022.100028","article-title":"Market Dynamics of Biodegradable Bio-Based Plastics: Projections and Linkages to European Policies","volume":"2","author":"Wellenreuther","year":"2022","journal-title":"EFB Bioecon. J."},{"key":"ref_2","unstructured":"(2025, January 17). Plastics Europe. Available online: https:\/\/plasticseurope.org\/knowledge-hub\/."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"574","DOI":"10.1016\/j.spc.2020.12.015","article-title":"Exploring Perceptions of Environmental Professionals, Plastic Processors, Students and Consumers of Bio-Based Plastics: Informing the Development of the Sector","volume":"26","author":"Mehta","year":"2021","journal-title":"Sustain. Prod. Consum."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"142732","DOI":"10.1016\/j.scitotenv.2020.142732","article-title":"An Assessment of Attitudes towards Plastics and Bioplastics in Europe","volume":"755","author":"Filho","year":"2021","journal-title":"Sci. Total Environ."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1017247","DOI":"10.3389\/fmars.2022.1017247","article-title":"Inequitable Distribution of Plastic Benefits and Burdens on Economies and Public Health","volume":"9","author":"Karasik","year":"2023","journal-title":"Front. Mar. Sci."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"eaat0131","DOI":"10.1126\/sciadv.aat0131","article-title":"The Chinese Import Ban and Its Impact on Global Plastic Waste Trade","volume":"4","author":"Brooks","year":"2018","journal-title":"Sci. Adv."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"105529","DOI":"10.1016\/j.resconrec.2021.105529","article-title":"Friend or Foe: Stakeholder Attitudes towards Biodegradable Plastic Packaging in Food Waste Anaerobic Digestion","volume":"169","author":"Kakadellis","year":"2021","journal-title":"Resour. Conserv. Recycl."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"104479","DOI":"10.1016\/j.resconrec.2019.104479","article-title":"Public Attitudes towards Bioplastics\u2014Knowledge, Perception and End-of-Life Management","volume":"151","author":"Ashworth","year":"2019","journal-title":"Resour. Conserv. Recycl."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1146\/annurev-environ-112522-072642","article-title":"Plastics and the Environment","volume":"48","author":"Napper","year":"2023","journal-title":"Annu. Rev. Environ. Resour."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1177\/0734242X211003965","article-title":"Considerations, Benefits and Unintended Consequences of Banning Plastic Shopping Bags for Environmental Sustainability: A Systematic Literature Review","volume":"40","author":"Muposhi","year":"2022","journal-title":"Waste Manag. Res."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"117191","DOI":"10.1016\/j.trac.2023.117191","article-title":"A Not so Circular Healthcare Economy: A Review of Challenges with Plastic Associated Chemicals","volume":"166","author":"Ramos","year":"2023","journal-title":"TrAC Trends Anal. Chem."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"984","DOI":"10.1002\/pi.6555","article-title":"Bioplastic: An Eco-Friendly Alternative to Non-Biodegradable Plastic","volume":"72","author":"Mangal","year":"2023","journal-title":"Polym. Int."},{"key":"ref_13","unstructured":"(2024, October 15). European Bioplastics. Available online: https:\/\/www.european-bioplastics.org\/bioplastics\/."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"qoad013","DOI":"10.1093\/qopen\/qoad013","article-title":"Consumer Research on Bioplastics: A Systematic Review","volume":"3","author":"Weinrich","year":"2023","journal-title":"Q Open"},{"key":"ref_15","unstructured":"(2025, January 18). European Commission EU Policy Framework on Biobased, Biodegradable and Compostable Plastics. Available online: https:\/\/environment.ec.europa.eu\/publications\/communication-eu-policy-framework-biobased-biodegradable-and-compostable-plastics_en."},{"key":"ref_16","unstructured":"(2024, December 14). European Bioplastics. Available online: https:\/\/www.european-bioplastics.org\/market\/applications-sectors\/."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"e14458","DOI":"10.1111\/1751-7915.14458","article-title":"Can Bioplastics Always Offer a Truly Sustainable Alternative to Fossil-Based Plastics?","volume":"17","author":"Prieto","year":"2024","journal-title":"Microb. Biotechnol."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"De, A., Oroski, F., Trentini, F., Silva, V.L., Teresa De Alvarenga Freire, M., De Almeida Oroski, F., Trentini, F., Oliveira Costa, L., and De Batista, V.G.T. (2024). Bioplastics and the Role of Institutions in the Design of Sustainable Post-Consumer Solutions. Sustainability, 16.","DOI":"10.3390\/su16125029"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"137311","DOI":"10.1016\/j.jclepro.2023.137311","article-title":"Drivers and Barriers for Consumers Purchasing Bioplastics\u2014A Systematic Literature Review","volume":"410","author":"Findrik","year":"2023","journal-title":"J. Clean. Prod."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1177\/002224296102500611","article-title":"A Model for Predictive Measurements of Advertising Effectiveness","volume":"25","author":"Lavidge","year":"1961","journal-title":"J. Mark."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"2803","DOI":"10.1002\/bse.3632","article-title":"How Emotions and Green Altruism Explain Consumer Purchase Intention toward Circular Economy Products: A Multi-Group Analysis on Willingness to Be Environmentally Friendly","volume":"33","author":"Chao","year":"2024","journal-title":"Bus. Strategy Environ."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"106533","DOI":"10.1016\/j.resconrec.2022.106533","article-title":"Consumer Acceptance of Products Made from Recycled Materials: A Scoping Review","volume":"186","author":"Polyportis","year":"2022","journal-title":"Resour. Conserv. Recycl."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"101436","DOI":"10.1016\/j.jenvp.2020.101436","article-title":"Purpose by Design or Disaster: Preserving a Sense of Purpose amid Environmental Uncertainty","volume":"69","author":"Burrow","year":"2020","journal-title":"J. Environ. Psychol."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"839","DOI":"10.1016\/j.tifs.2021.03.049","article-title":"Perspectives on Sustainable Food Packaging: Is Bio-Based Plastics a Solution?","volume":"112","author":"Mendes","year":"2021","journal-title":"Trends Food Sci. Technol."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"e0266918","DOI":"10.1371\/journal.pone.0266918","article-title":"Consumer Attitudes and Concerns with Bioplastics Use: An International Study","volume":"17","author":"Filho","year":"2022","journal-title":"PLoS ONE"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1002\/bse.3490","article-title":"The Imperative of Communication Signals in Boosting Business Strategies of the Bioplastic Packaging Industry","volume":"33","author":"Baskoro","year":"2024","journal-title":"Bus. Strategy Environ."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1007\/s10584-024-03704-7","article-title":"Improving Figures for Climate Change Communications: Insights from Interviews with International Policymakers and Practitioners","volume":"177","author":"Rabinovich","year":"2024","journal-title":"Clim. Change"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"7651","DOI":"10.1002\/bse.3891","article-title":"Exploring the Efficacy of Ecolabels as a Marketing Strategy: Insights from the Emerging Bioplastic Packaging Market","volume":"33","author":"Baskoro","year":"2024","journal-title":"Bus. Strategy Environ."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Moshood, T.D., Nawanir, G., Mahmud, F., Mohamad, F., Ahmad, M.H., and Ghani, A.A. (2021). Expanding Policy for Biodegradable Plastic Products and Market Dynamics of Bio-Based Plastics: Challenges and Opportunities. Sustainability, 13.","DOI":"10.3390\/su13116170"},{"key":"ref_30","doi-asserted-by":"crossref","unstructured":"Azhar, N.N.H., Ang, D.T.C., Abdullah, R., Harikrishna, J.A., and Cheng, A. (2022). Bio-Based Materials Riding the Wave of Sustainability: Common Misconceptions, Opportunities, Challenges and the Way Forward. Sustainability, 14.","DOI":"10.3390\/su14095032"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"927857","DOI":"10.3389\/frsus.2022.927857","article-title":"Effects of Information Provision on Public Attitudes toward Bioplastics in Japan","volume":"3","author":"Otaki","year":"2022","journal-title":"Front. Sustain."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1080\/00913367.2022.2047841","article-title":"Partially Green, Wholly Deceptive? How Consumers Respond to (In)Consistently Sustainable Packaged Products in the Presence of Sustainability Claims","volume":"52","author":"Steenis","year":"2023","journal-title":"J. Advert."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"116074","DOI":"10.1016\/j.jenvman.2022.116074","article-title":"Key Issues for Bio-Based, Biodegradable and Compostable Plastics Governance","volume":"322","author":"Nazareth","year":"2022","journal-title":"J. Environ. Manag."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"384","DOI":"10.1177\/19401612221106405","article-title":"How Climate Movement Actors and News Media Frame Climate Change and Strike: Evidence from Analyzing Twitter and News Media Discourse from 2018 to 2021","volume":"28","author":"Chen","year":"2023","journal-title":"Int. J. Press\/Politics"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"100126","DOI":"10.1016\/j.clrc.2023.100126","article-title":"Impact of Online-Based Information and Interaction to Proenvironmental Behavior on Plastic Pollution","volume":"9","author":"Rapada","year":"2023","journal-title":"Clean. Responsible Consum."},{"key":"ref_36","unstructured":"(2024, December 14). Attitudes of Europeans Towards the Environment\u2014Mar\u00e7o 2020\u2014Eurobarometer Survey. Available online: https:\/\/europa.eu\/eurobarometer\/surveys\/detail\/2257."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"229","DOI":"10.1038\/s43247-023-00870-x","article-title":"Generational Differences in Climate-Related Beliefs, Risk Perceptions and Emotions in the UK","volume":"4","author":"Poortinga","year":"2023","journal-title":"Commun. Earth Environ."},{"key":"ref_38","first-page":"116","article-title":"The Hawthorne Effect in Educational Research","volume":"44","author":"Cook","year":"1962","journal-title":"Phi Delta Kappa Int."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"100070","DOI":"10.1016\/j.commtr.2022.100070","article-title":"Public Perception of Electric Vehicles on Reddit over the Past Decade","volume":"2","author":"Ruan","year":"2022","journal-title":"Commun. Transp. Res."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"214","DOI":"10.1038\/s41586-021-03649-2","article-title":"Human Social Sensing Is an Untapped Resource for Computational Social Science","volume":"595","author":"Galesic","year":"2021","journal-title":"Nature"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"113702","DOI":"10.1016\/j.jbusres.2023.113702","article-title":"What\u2019s on the Horizon? A Bibliometric Analysis of Personal Data Collection Methods on Social Networks","volume":"158","year":"2023","journal-title":"J. Bus. Res."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"345","DOI":"10.1080\/13669877.2023.2170450","article-title":"Crises Social Sensing: Longitudinal Monitoring of Social Perceptions of Systemic Risk during Public Health Crisis","volume":"26","author":"Gaspar","year":"2023","journal-title":"J. Risk Res."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/j.chb.2015.11.040","article-title":"Beyond Positive or Negative: Qualitative Sentiment Analysis of Social Media Reactions to Unexpected Stressful Events","volume":"56","author":"Gaspar","year":"2016","journal-title":"Comput. Hum. Behav."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1007\/s42979-021-00958-1","article-title":"Sentiment Analysis in Social Media Data for Depression Detection Using Artificial Intelligence: A Review","volume":"3","author":"Babu","year":"2022","journal-title":"SN Comput. Sci."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"119862","DOI":"10.1016\/j.eswa.2023.119862","article-title":"A Review on Sentiment Analysis from Social Media Platforms","volume":"223","year":"2023","journal-title":"Expert Syst. Appl."},{"key":"ref_46","doi-asserted-by":"crossref","unstructured":"Li, S., Xie, Z., Chiu, D.K.W., and Ho, K.K.W. (2023). Sentiment Analysis and Topic Modeling Regarding Online Classes on the Reddit Platform: Educators versus Learners. Appl. Sci., 13.","DOI":"10.3390\/app13042250"},{"key":"ref_47","first-page":"n5","article-title":"The Use of Reddit as an Inexpensive Source for High-Quality Data","volume":"22","author":"Jamnik","year":"2017","journal-title":"Pract. Assess. Res. Eval."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1145\/3555639","article-title":"Make Reddit Great Again: Assessing Community Effects of Moderation Interventions on r\/The_Donald","volume":"6","author":"Trujillo","year":"2022","journal-title":"Proc. ACM Hum. Comput. Interact."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1145\/3490499","article-title":"Quarantined! Examining the Effects of a Community-Wide Moderation Intervention on Reddit","volume":"29","author":"Chandrasekharan","year":"2022","journal-title":"ACM Trans. Comput.-Hum. Interact. (TOCHI)"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"102130","DOI":"10.1016\/j.ecoinf.2023.102130","article-title":"Public Perception of Waste Regulations Implementation. Natural Language Processing vs. Real GHG Emission Reduction Modeling","volume":"76","author":"Gjorshoska","year":"2023","journal-title":"Ecol. Inform."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1145\/3633070","article-title":"Remember the Human: A Systematic Review of Ethical Considerations in Reddit Research","volume":"8","author":"Fiesler","year":"2024","journal-title":"Proc. ACM Hum. Comput. Interact."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"100073","DOI":"10.1016\/j.clpl.2024.100073","article-title":"Consumers Perspectives on Biobased Products: A Scoping Review","volume":"7","author":"Nejadrezaei","year":"2024","journal-title":"Clean. Prod. Lett."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"20563051211019004","DOI":"10.1177\/20563051211019004","article-title":"Studying Reddit: A Systematic Overview of Disciplines, Approaches, Methods, and Ethics","volume":"7","author":"Proferes","year":"2021","journal-title":"Soc. Media Soc."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"1505","DOI":"10.1016\/j.jiph.2021.08.010","article-title":"Public Sentiment Analysis and Topic Modeling Regarding COVID-19 Vaccines on the Reddit Social Media Platform: A Call to Action for Strengthening Vaccine Confidence","volume":"14","author":"Melton","year":"2021","journal-title":"J. Infect. Public Health"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"757","DOI":"10.1177\/14614448211067259","article-title":"Emotional Talk about Robotic Technologies on Reddit: Sentiment Analysis of Life Domains, Motives, and Temporal Themes","volume":"26","author":"Savela","year":"2024","journal-title":"New Media Soc."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"1163577","DOI":"10.3389\/frai.2023.1163577","article-title":"Sentiment Analysis for Measuring Hope and Fear from Reddit Posts during the 2022 Russo-Ukrainian Conflict","volume":"6","author":"Guerra","year":"2023","journal-title":"Front. Artif. Intell."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"e0302502","DOI":"10.1371\/journal.pone.0302502","article-title":"The Public Attitude towards ChatGPT on Reddit: A Study Based on Unsupervised Learning from Sentiment Analysis and Topic Modeling","volume":"19","author":"Xu","year":"2024","journal-title":"PLoS ONE"},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1111\/fire.12328","article-title":"\u201cI Just like the Stock\u201d: The Role of Reddit Sentiment in the GameStop Share Rally","volume":"58","author":"Long","year":"2023","journal-title":"Financ. Rev."},{"key":"ref_59","doi-asserted-by":"crossref","unstructured":"Surya Gunawan, T., Aleah Jehan Abdullah, N., Kartiwi, M., and Ihsanto, E. (2020, January 23\u201324). Social Network Analysis Using Python Data Mining. Proceedings of the 2020 8th International Conference on Cyber and IT Service Management, CITSM 2020, Pangkal Pinang, Indonesia.","DOI":"10.1109\/CITSM50537.2020.9268866"},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"1093","DOI":"10.1016\/j.asej.2014.04.011","article-title":"Sentiment Analysis Algorithms and Applications: A Survey","volume":"5","author":"Medhat","year":"2014","journal-title":"Ain Shams Eng. J."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"012042","DOI":"10.1088\/1757-899X\/1077\/1\/012042","article-title":"Does It Make You Sad? A Lexicon-Based Sentiment Analysis on COVID-19 News Tweets","volume":"1077","author":"Suryadi","year":"2021","journal-title":"IOP Conf. Ser. Mater. Sci. Eng."},{"key":"ref_62","doi-asserted-by":"crossref","unstructured":"Plutchik, R. (1980). A general psychoevolutionary theory of emotion. Theories of Emotion, Academic Press.","DOI":"10.1016\/B978-0-12-558701-3.50007-7"},{"key":"ref_63","doi-asserted-by":"crossref","unstructured":"Zad, S., Jimenez, J., and Finlayson, M.A. (2021, January 6). Hell Hath No Fury? Correcting Bias in the NRC Emotion Lexicon. Proceedings of the WOAH 2021\u20145th Workshop on Online Abuse and Harms, Bangkok, Thailand.","DOI":"10.18653\/v1\/2021.woah-1.11"},{"key":"ref_64","doi-asserted-by":"crossref","unstructured":"Ainapure, B.S., Pise, R.N., Reddy, P., Appasani, B., Srinivasulu, A., Khan, M.S., and Bizon, N. (2023). Sentiment Analysis of COVID-19 Tweets Using Deep Learning and Lexicon-Based Approaches. Sustainability, 15.","DOI":"10.3390\/su15032573"},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"28","DOI":"10.1080\/08993408.2023.2298162","article-title":"Investigating Relationships of Sentiments, Emotions, and Performance in Professional Development K-12 CS Teachers","volume":"35","author":"Liu","year":"2024","journal-title":"Comput. Sci. Educ."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"07003","DOI":"10.1051\/shsconf\/202111907003","article-title":"Analysis of Sentiments Conveyed through Twitter Concerning COVID-19","volume":"119","author":"Chiny","year":"2021","journal-title":"SHS Web Conf."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"49882","DOI":"10.1109\/ACCESS.2023.3277868","article-title":"Text Mining and Emotion Classification on Monkeypox Twitter Dataset: A Deep Learning-Natural Language Processing (NLP) Approach","volume":"11","author":"Olusegun","year":"2023","journal-title":"IEEE Access"},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"436","DOI":"10.1111\/j.1467-8640.2012.00460.x","article-title":"Crowdsourcing a word-emotion association lexicon","volume":"29","author":"Mohammad","year":"2013","journal-title":"Comput. Intell."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"1","DOI":"10.51983\/ajcst-2019.8.S2.2037","article-title":"A Comprehensive Study on Lexicon Based Approaches for Sentiment Analysis","volume":"8","author":"Bonta","year":"2019","journal-title":"Asian J. Comput. Sci. Technol."},{"key":"ref_70","unstructured":"(2025, January 20). United Nations. Available online: https:\/\/www.un.org\/en\/climatechange\/science\/key-findings."},{"key":"ref_71","unstructured":"(2025, January 20). The 2030 Agenda for Sustainable Development. Available online: https:\/\/sdgs.un.org\/2030agenda."},{"key":"ref_72","unstructured":"(2025, January 20). European Commission. Available online: https:\/\/environment.ec.europa.eu\/strategy\/plastics-strategy_en."},{"key":"ref_73","unstructured":"(2025, January 20). EUR-Lex. Available online: https:\/\/eur-lex.europa.eu\/eli\/dir\/2019\/904\/oj\/eng."},{"key":"ref_74","unstructured":"(2025, January 20). Paris Climate Agreement. The White House, Available online: https:\/\/bidenwhitehouse.archives.gov\/briefing-room\/statements-releases\/2021\/01\/20\/paris-climate-agreement\/."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"2130012","DOI":"10.1080\/17517575.2022.2130012","article-title":"Customer Opinions Mining through Social Media: Insights from Sustainability Fraud Crisis\u2014Volkswagen Emissions Scandal","volume":"17","author":"Ding","year":"2023","journal-title":"Enterp. Inf. Syst."},{"key":"ref_76","first-page":"597","article-title":"Science News Consumption Patterns and Their Implications for Public Understanding of Science","volume":"92","author":"Su","year":"2015","journal-title":"J. Mass Commun. Q."},{"key":"ref_77","first-page":"783","article-title":"Mediatization and the Disproportionate Attention to Negative News","volume":"20","author":"Kroon","year":"2019","journal-title":"J. Stud."},{"key":"ref_78","doi-asserted-by":"crossref","unstructured":"Kim, S., and Kim, Y.C. (2021). Attention to News Media, Emotional Responses, and Policy Preferences about Public Health Crisis: The Case of Fine Dust Pollution in South Korea. Int. J. Environ. Res. Public Health, 18.","DOI":"10.3390\/ijerph182413325"},{"key":"ref_79","doi-asserted-by":"crossref","unstructured":"Possid\u00f3nio, C., Farias, A.R., Domingos, S., Cruz, B., Lu\u00eds, S., and Loureiro, A. (2025). Exploring Supply-Side Barriers for Commercialization of New Biopolymer Production Technologies: A Systematic Review. Sustainability, 17.","DOI":"10.3390\/su17030820"},{"key":"ref_80","doi-asserted-by":"crossref","first-page":"627972","DOI":"10.3389\/fpsyg.2021.627972","article-title":"Co-Created Future Scenarios as a Tool to Communicate Sustainable Development in Coastal Communities in Palawan, Philippines","volume":"12","author":"Richter","year":"2021","journal-title":"Front. Psychol."},{"key":"ref_81","doi-asserted-by":"crossref","first-page":"2027","DOI":"10.1007\/s11625-021-01038-2","article-title":"How Do We Effectively Communicate Air Pollution to Change Public Attitudes and Behaviours? A Review","volume":"16","author":"Riley","year":"2021","journal-title":"Sustain. Sci."},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"244","DOI":"10.1111\/sipr.12061","article-title":"Public Communication as a Tool to Implement Environmental Policies","volume":"14","year":"2020","journal-title":"Soc. Issues Policy Rev."},{"key":"ref_83","first-page":"8","article-title":"Dimensionalizing Cultures: The Hofstede Model in Context","volume":"2","author":"Hofstede","year":"2011","journal-title":"Online Read. Psychol. Cult."},{"key":"ref_84","doi-asserted-by":"crossref","first-page":"1367","DOI":"10.1111\/risa.13926","article-title":"The Social Amplification of Risk Framework: New Perspectives","volume":"42","author":"Kasperson","year":"2022","journal-title":"Risk Anal."}],"container-title":["Polymers"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-4360\/17\/6\/823\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,9]],"date-time":"2025-10-09T16:57:18Z","timestamp":1760029038000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-4360\/17\/6\/823"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,3,20]]},"references-count":84,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2025,3]]}},"alternative-id":["polym17060823"],"URL":"https:\/\/doi.org\/10.3390\/polym17060823","relation":{},"ISSN":["2073-4360"],"issn-type":[{"value":"2073-4360","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,3,20]]}}}