CO_2与缩水甘油醚类单体共聚物的合成及表征  

Synthesis and Characterization of Glycidol ether-CO_2 Copolymers

作　　者：郭锦棠[1] 王新英[1] 杨俊红[2] 许涌深[1] 孙经武[1] 

机构地区：[1]天津大学一碳化工国家重点实验室,天津大学化工学院天津300072 [2]天津大学电气自动化与能源工程学院,天津300072

出　　处：《应用化学》2002年第3期234-238,共5页Chinese Journal of Applied Chemistry

摘　　要：以醇和酚与环氧氯丙烷 (ECH)反应合成了 α-烯丙基缩水甘油醚、β-氯乙基缩水甘油醚、苯基缩水甘油醚、间甲苯缩水甘油醚、苄基缩水甘油醚等单体 .利用稀土钇的磷酸酯盐和三异丁基铝组成的络合催化剂[Y(P2 0 4 ) 3-Al(i-Bu) 3]催化 CO2 与缩水甘油醚类单体 (GE)的共聚反应 ,合成出新型高分子材料脂肪族聚碳酸酯 .利用红外光谱、核磁共振、广角 X射线衍射、热失重分析、动态力学性能等对聚合物进行了表征 .研究结果表明 ,Y(P2 0 4 ) 3-Al(i-Bu) 3对缩水甘油醚类单体和 CO2 的共聚反应表现出较好的催化活性 ,适宜的催化剂用量 Y为 2 .7× 1 0 - 2～ 5× 1 0 - 2 mol/L.热分析结果表明 ,带苯环侧基的缩水甘油醚类单体 -CO2 共聚物的耐热性高于环氧氯丙烷 -CO2 共聚物 ,动态力学谱表明 ,间甲苯缩水甘油醚 -CO2 共聚物的 Tg=2 6.6℃ .Some glycidol ether monomer(GE) were prepared by reacting epichlorohydrin(ECH) with phenol and/or alcohol; α allyl glycidol ether, β chloroethyl glycidol ether, benzene glycidol ether, m tolyl glycidol ether, benzyl glycidol ether. And aliphatic polycarbonates were synthesized by copolymerization of CO 2 with GE catalyzed by coordination catalyst composed of Y phosphonate and triisobutylaluminum[Y(P 204 ) 3 A1( i Bu) 3]. The copolymers were characterized by IR, 1H NMR, 13 C NMR , WXRD, TG and dynamic mechanical analysis. The results showed that Y(P 204 ) 3 A1( i Bu) 3 has better catalytic activity in the copolymerization of CO 2 with GE and the preferred amount of catalyst was 2 7×10 -2 ~5 0×10 -2 mol/L. The thermal analysis revealed the thermal resistance of the copolymers prepared by CO 2 and GE with benzene ring was higher than that of the copolymer prepared by CO 2 and ECH. The glass transition temperature of the m tolyl glycidol ether CO 2 copolymer was 26 6 ℃.

关 键 词：CO2 缩水甘油醚 共聚反应 热性能 合成 表征 二氧化碳 脂肪族聚碳酸酯 

分 类 号：O633.14[理学—高分子化学] O631.31[理学—化学]