文献类型：期刊文献

中文题名：超临界CO_2中马来酸酐与苯乙烯的聚合

英文题名：The Copolymerization of Maleic Anhydride and Styrene in Supercritical Carbon Dioxide

作者：李春生[1];张书香[2];郑安呐[1];解竹柏[2];耿兵[2]

机构：[1]华东理工大学材料科学与工程学院,上海200237;[2]济南大学化学化工学院,山东济南250022

年份：2006

卷号：22

期号：5

起止页码：95

中文期刊名：高分子材料科学与工程

外文期刊名：Polymer Materials Science & Engineering

收录：CSTPCD;;EI(收录号：20065110316722);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：超临界CO2;马来酸酐;苯乙烯;共聚

外文关键词：supercritical CO2 ; maleic anhydride ; styrene ; copolymerization

摘要：在超临界CO2中进行了马来酸酐(M A)与苯乙烯(S t)的沉淀聚合反应,研究了反应时间、反应压力等条件对聚合反应的影响。用FT-IR、GPC、DSC和TG对产物进行了表征。结果表明,聚合反应的转化率可以达到96%,产物的数均分子量M-n可以达到4.6×104g/m o l。DSC和产物溶解性分析表明所合成的产物为交替共聚物。
The copolymerization of maleic anhydride and styrene in supercritieal carbon dioxide was carried out by free radical. The effects of reaction conditions such as reaction time, supercritical CO2 pressure on the polymerization were investigated. The products are dry white powder. The conversion reaches at 96%. The products were characterized by Fourier transform infrared spectroscopy （FT-IR）, gel permeation chromatography （GPC）, differential scanning calorimetry （DSC） and thermogravimetry （TG）. The number-average molecular weight of the copolymer reaches at 4.6）〈 10^4 g/mol. With increasing of the pressure, the molecular weight of the copolymer increases. The solubility analysis indicates that the copolymer is alternation copolymer. DSC datum shows that the glass transition lemperature （Tg） of the copolymer is 97.1℃. TG curve shows that the decomposition temperature of the copolymer is about 350 ℃.