###
DOI:
工程科学与技术:2012,44(3):170-173
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
紫外光稳定化核壳弹性体的合成
(四川大学 高分子科学与工程学院)
Preparation of UV-stabilized Core-shell Elastomer
(School of Polymer Sci. and Eng., Sichuan Univ.)
摘要
图/表
参考文献
相似文献
本文已被:浏览 1765次   下载 0
投稿时间:2011-09-20    修订日期:2011-11-19
中文摘要: 将一种聚合型的受阻胺光稳定剂, 4-丙烯酰氧基-1, 2, 2, 6, 6-五甲基哌啶 (PMPA)与丙烯酸丁酯(BA)、甲基丙烯酸甲酯(MMA)通过乳液聚合制备出一种具有紫外光稳定能力的核壳结构弹性体粒子。并研究了乳化剂用量、引发剂用量及反应温度对聚合反应的影响。核磁共振氢谱(^1H-NMR)分析结果证实光稳定基团已成功接枝到乳胶粒子中。透射电镜(TEM)观察结果显示,乳胶粒子具有核壳结构,且粒径约为100 nm。热分析(TGA)结果表明,受阻胺基团的引入可以改善乳胶粒子的热稳定性,而且可以极大地提高其初始分解温度。
中文关键词: 光稳定剂  乳液聚合  核壳弹性体
Abstract:UV-stabilized core-shell elastomer was prepared by the emulsion polymerization of butyl acrylate (BA), methyl methacrylate (MMA) and a polymerizable UV-stabilizer, 1, 2, 2, 6, 6-pentamethylpiperidin-4-yl acrylate (PMPA). Effects of reaction temperature, amount of emulsifier and initiator on the polymerization was studied. Nuclear magnetic resonance (^1H-NMR) analysis showed that PMPA is successfully introduced into the elastomer and the chemical composition of the polymer is consistent with the mass ratio of feeding monomers. Transmission electron microscopy (TEM) analysis revealed that the elastomer obtained presents a core-shell structure with an average particle size around 100 nm. The thermogravimetry analysis (TGA) and differential thermal gravimetric (DTG) results revealed that HALS-containing particles provide an improvement in thermal stability in comparison to HALS-free particles, and especially the onset decomposition temperature (Tonset) is greatly improved.
文章编号:201100832     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(50873069 )
作者简介:
引用文本:
游斌,周道军,张适龄,杨凡,任显诚.紫外光稳定化核壳弹性体的合成[J].工程科学与技术,2012,44(3):170-173.
You Bin,Zhou Daojun,Zhang Shiling,Yang Fan,Ren Xiancheng.Preparation of UV-stabilized Core-shell Elastomer[J].Advanced Engineering Sciences,2012,44(3):170-173.