马来酸酐改性超支化聚醚多元醇  

Modification of Hyperbranched Polyethers Polyol by Maleic Anhydride

作　　者：朱丙清[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《上海塑料》2015年第2期38-40,共3页Shanghai Plastics

摘　　要：以三羟乙基异氰脲酸酯为起始剂,双金属氰化物DMC为催化剂,催化缩水甘油和环氧丙烷(PO)合成超支化聚醚多元醇,并用马来酸酐(MA)对其改性制备不饱和超支化聚醚酯多元醇。讨论了PO与MA的摩尔比对聚合反应的影响,并使用红外光谱和核磁共振图谱对产物结构进行表征。结果表明:适量的聚合单体MA的引入可以提高聚合反应速率,缩短聚合反应时间。当PO与MA的摩尔比为45∶1时,聚合反应时间最短,单体转化率最高。Hyperbranched polyether polyol was synthesized by polymerization of glycidol and pro pylene oxide （PO） using tri （2-hydroxyethyl） isocyanurate （THEIC） as an initiator , double metal cyanide （DMC） as a catalyst. And unsaturated hyperbranched polyetherester polyol was prepared with modification of hyperbranched polyether polyol by maleic anhydride（MA）. The effect of the molar ratio of PO to MA on the polymerization was discussed. The products structure was characterized by FTIR and 1H NMR. The results show that the introduction of MA can improve polymerization speed and decline the polymerization time. The polymerization time is the shortest and the yield is the highest when the molar ratio of PO to MA is 45：1.

关 键 词：双金属氧化物催化剂 改性 超支化聚醚多元醇 

分 类 号：O631.3[理学—高分子化学]