Unique morphology and properties study of polyacrylate obtained via frontal photopolymerization

被引：24

作者：

Cui, Yanyan ^{[1
]}

Yang, Jianwen ^{[1
]}

Zeng, Zhaohua ^{[1
]}

Zeng, Zhi ^{[1
]}

Chen, Yonglie ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Inst Polymer Sci, Guangzhou 510275, Peoples R China

来源：

POLYMER | 2007年 / 48卷 / 20期

基金：

中国国家自然科学基金;

关键词：

frontal polymerization; photopolymerization; morphology;

D O I：

10.1016/j.polymer.2007.08.013

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Remarkable radial temperature distribution at the advancing reaction front was determined in frontal photopolymerization (FPP). Through SEM observation of the cross-fracture section and vertical fracture section for the heat-insulated FPP polymer rod, a cylindrical multi-layer structure was first observed in the FPP product. A sleeve-like model was proposed to describe the unusual morphology on the basis of polymer self-drawing and convection around reaction front. Vertical gradient distribution of molecular weight and its polydispersity in the poly(isobornyl acrylate) rod obtained via FPP was found through GPC determination, which might be developed as an in situ self-fractionation technique for polymer. Thermal analysis of the polymers showed that the FPP tended to produce purer polymer than the traditional thick film photopolymerization. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：5994 / 6001

页数：8

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