Journal
EUROPEAN POLYMER JOURNAL
Volume 75, Issue -, Pages 303-309Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2015.12.016
Keywords
Acrylate polymer; Refractive index; Photopolymerization; Birefringence; Polymer optics
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Funding
- Korea Institute of Science and Technology (KIST) institutional program, South Korea
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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.
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