Synthesis of Polyester UV Absorbers via Thiol-Ene Click Reaction and their Application in EVA

被引：0
|
作者：
Yu S.-J. [1 ]
Lu S.-W. [1 ]
Luo Z.-J. [1 ]
Yang F. [1 ]
机构：
[1] College of Chemistry and Materials Science Guangxi Teachers Education University, Nanning
来源：
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2018年 / 32卷 / 05期
关键词：
Benzophenone; EVA; UV absorber; UV aging;
D O I：
10.3969/j.issn.1003-9015.2018.05.032
中图分类号：
TB [一般工业技术];
学科分类号：
摘要：
A novel polyester UV absorber ( PEG-b-PE UV-0 ) with 2,4-dihydroxybenzophenone (UV-0) at the side chain was prepared via thiol-ene click reaction and its structure was confirmed by FT-IR, 1 H-NMR and UV. UV results show that PEG-b-PE UV-0 has good UV-A absorption. This PEG-b-PE UV-0 was applied in EVA to improve UV aging resistance which was studied by total reflection infrared spectra, tensile strength retention rate, weight loss rate, carbonyl index, scanning electron microscopy (SEM) and photoelectron spectroscopy (XPS) before and after UV aging. The results was compared with those of 2,4-dihydroxy-3-(N,N-dihydroxyethyl-aminomethyl) benzophenone (HAHBP) added EVA. The carbonyl index of the PEG-b-PE UV-0 added EVA is increased by only 0.89%, which is 1/5 of that of blank EVA after aging for 40 days. XPS results show that surface oxygen content of the PEG-b-PE UV-0 added EVA is increased by only 1.22% (16.1% for blank EVA). Tensile strength retention rate of the modified EVA is significantly greater than that of blank EVA and EVA with HAHBP. It is confirmed that PEG-b-PE UV-0 exhibits good anti-UV aging effect to EVA. © 2018, Editorial Board of "Journal of Chemical Engineering of Chinese Universities". All right reserved.
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页码：1228 / 1234
页数：6
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