Photopolymerizable acrylated hyperbranched polyisophthalesters used for photorefractive materials I. Synthesis and characterization

被引：21

作者：

Kou, HG

Asif, A

Shi, WF ^{[1
]}

机构：

[1] Univ Sci & Technol China, State Key Lab Fire Sci, Anhua 230026, Peoples R China

[2] Univ Sci & Technol China, Dept Polymer Sci & Engn, Anhua 230026, Peoples R China

来源：

EUROPEAN POLYMER JOURNAL | 2002年 / 38卷 / 10期

基金：

中国国家自然科学基金;

关键词：

hyperbranched polymer; polyisophthalester; graded-index polymeric material; photopolymerization kinetics;

D O I：

10.1016/S0014-3057(02)00105-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

UV-curable acrylated hyperbranched prepolymers with different numbers of acrylic end-groups were synthesized by modifying the hyperbranched polyisophthalester (HPIPE) with hydroxyethyl acrylate and P-naphthol, and characterized by FT-IR, H-1 NMR and VPO measurements. The effect of naphthyl end-group concentration of the prepolymer on their refractive index (RI) was investigated by an Abel Refractive Apparatus. It was found that the RI increases gradually as naphthyl end-group concentration increases. The acrylate-modified HPIPEs with or without co-monomer trimethylolpropane triacrylate addition were photopolymerized rapidly in the presence of a photo-fragmenting initiator under UV irradiation. Thermal properties of the UV-cured films were also studied by DMTA and TGA measurements. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1931 / 1936

页数：6

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