高效液相色谱法测定丙烯酸酯单体竞聚率  

Determination of Reactivity Ratios for Acrylic Esters by High Performance Liquid Chromatography

作　　者：陈功[1] 魏秀贞[1] 黄鹏程[2] 

机构地区：[1]北京理工大学化工与材料学院,北京100081 [2]北京航空航天大学材料学院,北京100083

出　　处：《北京理工大学学报》2001年第5期658-662,共5页Transactions of Beijing Institute of Technology

摘　　要：为避免聚合体系中单体之间以及单体与聚合物之间分离困难 ,采用液相色谱法测定了甲基丙烯酰氧乙基三甲基氯化胺 (MTC)与丙烯酸乙酯 (EA)及甲基丙烯酸甲酯(MMA)的竞聚率 .为减少误差 ,根据两种估算法处理实验结果 .在 60℃甲醇溶液中 ,测得EA/MTC竞聚率 r1为 1.32 ,r2 为 2 .4 3及 MMA/MTC竞聚率 r1为 0 .98,r2 为 1.To avoid the difficulty of separating monomers from each other and separating monomers from copolymer in copolymerization system, high performance liquid chromatographic method was successfully used to determin the reactivity ratios of ethyl acrylate (EA) with methacryloyloxyethyltrimethylammoniumchloride (MTC) and methylmethacrylate (MMA) with MTC. Based on two estimation methods, the reactivity ratios of r 1 =1 32, r 2 =2 43 for EA with MTC and r 1 =0 98, r 2 =1 80 for MMA with MTC were obtained in methyl alcohol solution at 60 ℃ with high accuracy.

关 键 词：甲基丙烯酰氧乙基三甲基氯化胺 丙烯酸乙酯 甲基丙烯酸甲酯 竞聚率 高效液相色谱法 药物控释高分子材料 

分 类 号：R318.08[医药卫生—生物医学工程] O657.72[医药卫生—基础医学]