Kim, Hyeonil Yeo, Hyeonuk Goh, Munju Ku, Bon-Cheol Hahn, Jae Ryang You, Nam-Ho 2024-01-20T05:02:16Z 2024-01-20T05:02:16Z 2021-09-05 2016-02 0014-3057 https://pubs.kist.re.kr/handle/201004/124443 A highly refractive and transparent photo-curable polymer resin containing 3,4-ethylenedithiothiophene units in the polymer chain has been developed. The polymer derived from 1,5-bis(2-acryloylenethyl)-3,4-ethylenedithiothiophene (BASEDTT) was prepared by photopolymerization using diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide as a photo initiator under UV irradiation. The polymer exhibited high thermal properties, including a glass transition temperature (>134 degrees C), and a 5% weight loss temperature of 308 degrees C under nitrogen. The polymer also showed good optical properties, such as high optical transparency in the visible region, a low birefringence of 0.0043 and a high refractive index of 1.644 at 637 nm. (C) 2015 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD SULFUR POLYMERIZATION POLYIMIDES POLYMERS Preparation of UV-curable acryl resin for high refractive index based on 1,5-bis(2-acryloylenethyl)-3,4-ethylenedithiothiophene Article 10.1016/j.eurpolymj.2015.12.016 1 EUROPEAN POLYMER JOURNAL, v.75, pp.303 - 309 EUROPEAN POLYMER JOURNAL 75 303 309 scie scopus 000370309400025 2-s2.0-84953256730 Polymer Science Polymer Science Article SULFUR POLYMERIZATION POLYIMIDES POLYMERS Acrylate polymer Refractive index Photopolymerization Birefringence Polymer optics