{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T09:39:38Z","timestamp":1780911578463,"version":"3.54.1"},"reference-count":44,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2025,5,22]],"date-time":"2025-05-22T00:00:00Z","timestamp":1747872000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100018542","name":"Natural Science Foundation of Sichuan","doi-asserted-by":"publisher","award":["2023NSFSC0309"],"award-info":[{"award-number":["2023NSFSC0309"]}],"id":[{"id":"10.13039\/501100018542","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100018542","name":"Natural Science Foundation of Sichuan","doi-asserted-by":"publisher","award":["CX20210039"],"award-info":[{"award-number":["CX20210039"]}],"id":[{"id":"10.13039\/501100018542","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Innovation and Development Foundation of China Academy of Engineering","award":["2023NSFSC0309"],"award-info":[{"award-number":["2023NSFSC0309"]}]},{"name":"Innovation and Development Foundation of China Academy of Engineering","award":["CX20210039"],"award-info":[{"award-number":["CX20210039"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>A soluble photosensitive polyamide ester precursor (BAFPAE) was synthesized through copolymerization of 2,2-bis [4-(4-aminophenoxy)phenyl]hexafluoropropane (HFBAPP) with 4,4\u2032-(4,4\u2032-isopropylidenediphenoxy)bis(phthalic anhydride) (BPADA). Hydroxyethyl methacrylate (HEMA) was incorporated as a photosensitive functional group, and a transparent photosensitive polyimide film was obtained by thermal curing of the precursor film. The effects of reaction temperature and varying HEMA equivalents on the mechanical properties of the film were systematically investigated. The results indicated that the formation of polyacrylate-polyimide interpenetrating polymer networks (IPNs) was pivotal in preserving the mechanical integrity of the material. The optimized BAF-x-y exhibited a toughness of 12.69 MJ m3, a Young\u2019s modulus of 2.86 GPa, an elongation at break of 21.16%, and a tensile strength of 92.68 MPa.<\/jats:p>","DOI":"10.3390\/polym17111428","type":"journal-article","created":{"date-parts":[[2025,5,22]],"date-time":"2025-05-22T07:04:28Z","timestamp":1747897468000},"page":"1428","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Soluble Photosensitive Polyimide Precursor with Bisphenol A Framework: Synthesis and Characterization"],"prefix":"10.3390","volume":"17","author":[{"given":"Bowen","family":"Zheng","sequence":"first","affiliation":[{"name":"Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Li","sequence":"additional","affiliation":[{"name":"Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ning","family":"Li","sequence":"additional","affiliation":[{"name":"Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wa","family":"Li","sequence":"additional","affiliation":[{"name":"Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3718-8003","authenticated-orcid":false,"given":"Shuai","family":"Zhang","sequence":"additional","affiliation":[{"name":"Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haile","family":"Lei","sequence":"additional","affiliation":[{"name":"Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,5,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1038\/s41378-023-00503-5","article-title":"Microfabrication of functional polyimide films and microstructures for flexible MEMS applications","volume":"9","author":"Dong","year":"2023","journal-title":"Microsyst. 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