{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T22:57:53Z","timestamp":1787785073049,"version":"build-2784847793"},"reference-count":45,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2024,12,28]],"date-time":"2024-12-28T00:00:00Z","timestamp":1735344000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministry of Trade, Industry, and Energy, Republic of Korea","award":["20015896"],"award-info":[{"award-number":["20015896"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>Conventional PP with a linear chain structure is not suitable for foam processing due to its poor rheological properties. In this study, PP was modified with PE through reactive melt blending of maleic anhydride-grafted PP (MA-PP) with a small amount of PE bearing glycidyl groups on its backbone (G-PE), with the aim of enhancing the melt rheological properties of PP to make it suitable for foam processing. An anhydride\u2013epoxy reaction occurred between MA-PP and G-PE during the melt processing, resulting in the formation of a crosslinked polymer network, which was confirmed by FTIR spectroscopy, a solubility test, and the presence of a rubbery plateau above the melting point. Melt rheological tests demonstrated that the modified PP showed a pronounced shear-thinning effect and higher elasticity compared to pristine PP. Foaming tests using supercritical carbon dioxide as a foaming agent in an autoclave demonstrated that the modified PP could produce a microcellular foam with a closed-cell structure, which was not achievable with neat PP.<\/jats:p>","DOI":"10.3390\/polym17010049","type":"journal-article","created":{"date-parts":[[2024,12,31]],"date-time":"2024-12-31T14:21:12Z","timestamp":1735654872000},"page":"49","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Polypropylene Modified with Polyethylene Through Reactive Melt Blending: Fabrication and Characterizations"],"prefix":"10.3390","volume":"17","author":[{"given":"Changgyu","family":"Lim","sequence":"first","affiliation":[{"name":"Department of Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yujin","family":"Jang","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea"},{"name":"BK21 FOUR ERICA-ACE Center, Hanyang University, Ansan 15588, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Young-Wook","family":"Chang","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea"},{"name":"BK21 FOUR ERICA-ACE Center, Hanyang University, Ansan 15588, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,12,28]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"Polypropylene as a promising plastic: A review","volume":"6","author":"Maddah","year":"2016","journal-title":"Am. 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