Poly(MMA-co-MBA-co-MA-POSS)三元共聚物溶液性质的反气相色谱表征  

Characterization of solution properties of poly(MMA-co-MBA-co-MA-POSS) terpolymer by inverse gas chromatograph

作　　者：秦如浩[1] 郭胜男[1] 周晓慧[1] 柴仕淦[1] 张金枝[1] 邹其超[1] 

机构地区：[1]湖北大学化学化工学院,湖北武汉430062

出　　处：《化学研究》2012年第3期31-37,共7页Chemical Research

基　　金：中国科技部资助项目(2011YQ12003505)

摘　　要：以20种溶剂作为探针分子,采用反气相色谱技术表征了甲基丙烯酸甲酯-甲基丙烯酸丁酯-甲基丙烯酰氧丙基七环戊基倍半硅氧烷三元共聚物[poly(MMA-co-MBA-co-MA-POSS)]的一系列物理化学性质,并分析了溶剂探针分子与共聚物分子间的相互作用以及共聚物在溶剂中的溶解性.结果表明:在实验温度范围内(343～393K),乙酸甲酯、乙酸乙酯、芳烃、二氯甲烷、三氯甲烷是良溶剂,乙酸丙酯、乙酸丁酯、乙酸戊酯、四氯化碳是中等溶剂,烷烃类和醇类是劣溶剂;随着共聚物中POSS含量的增大,溶剂探针分子溶解聚合物的能力增强,但引入POSS对共聚物的溶度参数无明显影响.The solution properties of poly（methyl methacrylate-co-n-butyl methacrylate-co-cy- clopentyl methacryloxy propyl-polyhedral oligomeric silsesquioxane） terpolymer, poly（MMA- co-MBA-co-MA-POSS） in short, were investigated by inverse gas chromatography （IGC） using 20 different kinds of solvents as the probes. The interactions between POSS-containing polymers and solvents and the solubility of the polymers in these solvents were analyzed by tak- ing into account some thermodynamic parameters. It has been found that methyl acetate, ethyl acetate, aromatic hydrocarbons, dichoromethane, and chloroform are good solvents; n-propyl acetate, n-butyl acetate, n-pentyl acetate, and carbon tetraehloride are moderate solvents, while alkanes and alcohols are poor solvents for all POSS-containing polymers within the experimental temperature range. The solubility of the terpolymer in the probe solvents rises with increasing content of POSS therein, but incorporation of POSS has no obvious influence on the solubility parameter of the terpolymer.

关 键 词：多面齐聚倍半硅氧烷 三元共聚物 溶液性质 反气相色谱 表征 

分 类 号：O657.7[理学—分析化学]