文献类型：期刊文献

中文题名：核磁共振法测定苯乙烯和甲基丙烯酸正丁酯竞聚率的研究

英文题名：STUDY ON MEASUREMENT OF RELATIVE REACTIVITY RATIOS OF STYRENE AND BMA BY NUCLEAR MAGNETIC RESONANCE SPECTROMETRY

作者：陆志豹[1];吴平平[1];韩哲文[1];朱清仁[1]

机构：[1]华东理工大学高分子材料系,中国科技大学结构分析开放实验室

年份：1996

卷号：6

期号：1

起止页码：47

中文期刊名：高分子学报

外文期刊名：Acta Polymerica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：竞聚率;核磁共振;共聚;苯乙烯;BMA;自由基共聚合

外文关键词：Relativity ratios;NMR;Styrene;BMA Radical copolymerization

摘要：以苯乙烯（Ｓｔ）－甲基丙烯酸正丁酯（ＢＭＡ）共聚体系为研究对象，在共聚单体组成敏感点附近做重复实验，进行了４０、６０、８０、１００，１２０、１４０℃下的共聚合，用ＮＭＲ方法测定共聚物的组成，用Ｍａｙｏ－Ｌｅｗｉｓ微分组成方程的误差变量法计算竞聚率，同时给出竞聚率的９５％可信椭圆区间．并根据竟聚率对温度的依赖关系得到一组合理的竞聚率值．
For the system of Styrene/n-butyl methacrylate/AIBN,copolymeizations were carried out at two sensitive feed monomer composition points by duplicate experiments at 40.60.80.100.120.140℃ respectively,The compositions of copolymer wereanalysized by NMR.The relative reactivity ratios of styrene and BMA were calculated by the error-in-variables method(EVM) of Mayo-Lowis equation,and 95% joint confidence intervals of the reactivity ratios were also given.The results were in according with the the FTIR results.The suggested reactivity ratios of St-BMA system at differenttemperature were obtained from the linear relation of measured reactivity ratios and temperatures by regression treatment