大分子分散改性剂PEG400-PMAH-PAA的合成及应用  

Synthesis and Application of Macromolecular Dispersant and Modifier PEG400-PMAH-PAA

作　　者：胡伟兆[1] 章于川[1] 李方山[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039

出　　处：《合成化学》2011年第3期331-333,351,共4页Chinese Journal of Synthetic Chemistry

基　　金：国家科技攻关计划项目(2005BA316C)

摘　　要：马来酸酐(MAH)和聚乙二醇400(PEG400)通过开环反应制得预聚体(PEG400-PMAH);再与丙烯酸(AA)进行自由基共聚合成了新型嵌段共聚物聚乙二醇马来酸单酯-聚丙烯酸[PEG400-PMAH-PAA(1)],其结构经NMR,IR,TGA和GPC表征。结果表明1符合设计预期,M-n=3 050,M-w=3 979,d=1.302,分解温度大于200℃。1作为水溶性大分子分散改性剂,可以提高绢云母在湿磨加工中的水分散性以及与极性橡胶的相容性。A new hydrosoluble macromolecular dispersant and modifier,PEG400-PMAH-PAA（1）,was synthesized by a free radical polymerization of acrylic acid（AA） with the performed polymer which was prepared by ring-opening reaction of maleic anhydride（PMAH） and poly（ethylene glycol）（PEG400）.The structure and performance was characterized by NMR,IR,TGA and GPC.The result showed that 1 accord with design anticipate with n=3 050,w=3 979 and d=1.302;decomposition temperature of more than 200 ℃.The application experiment indicated that 1 can improve the hydrosoluble dispersibility of sericite and the compatibility between sericite and polar rubber in wet finishing.

关 键 词：马来酸单酯 大分子改性剂 嵌段共聚物 合成 

分 类 号：O633.1[理学—高分子化学]