苯乙烯马来酸酐共聚物的阳离子化改性及其对颜料的分散  

Preparation of cationic polymers from styrene maleic anhydride copolymer and its dispersing of pigments

作　　者：周家达[1] 房宽峻[1] 张霞[1] 

机构地区：[1]江南大学生态纺织教育部重点实验室,无锡214122

出　　处：《化工新型材料》2007年第3期72-74,共3页New Chemical Materials

基　　金：国家自然科学基金项目;阳离子型超细颜料体系的制备及性质;项目批准号:2047025

摘　　要：以无水乙醇和2,3-环氧丙基三甲基氯化胺(ETA)为改性剂,对苯乙烯马来酸酐共聚物(SMA)进行阳离子化改性,制备出一种高分子阳离子表面活性剂(SMG)。通过红外光谱、含氮量以及溶解性测定表明:SMG分子中的酸酐基团已全部开环,部分形成酯键,含氮量增至0.372%,在SMG上成功引入了季铵盐基团。SMG易溶于水,降低表面张力的能力比SMA钠盐差,但对颜料黄14的分散效果较好,可以使颜料的zeta电位提高至+35.4mV。A novel macro cationic surfactant（SMG）was prepared by modifying styrene maleic anhydride copolymer （SMA） by anhydrous alcohol and 2,3-epoxypropyltrimethylammonium chloride （ETA）. The structure was characterized by FTIR, nitrogen content and solubility. It was shown that quaternary ammonium salts were grafted by ester bonds from anhydride functions. SMG was soluble in water, and the nitrogen content was 0. 372 wt%. SMG had lower surface activity but higher dispersibilty than the saponification of SMA. The zeta potential of pigment yellow 14 dispersion were up to ＋35.4mV.

关 键 词：阳离子 表面活性剂 接枝 苯乙烯 马来酸酐 颜料 

分 类 号：TQ620.1[化学工程—精细化工]