稀土络合催化二氧化碳和环氧化物的共聚反应

来源 :高分子材料科学与工程 | 被引量 : 0次 | 上传用户：zaodt

【摘要】

：

以稀土络合体系RE(P204)3-Al[CH2CH(CH3)2]3(RE=Y,Nd,Pr,Sm,Dy,Eu);P204=(RO)2POO-,R=CH3(CH2)3CH(C2H5)CH2-催化二氧化碳(CO2)与环氧氯丙烷(ECH)无规共聚/,合成高分子量的新

【作者】

：

郭锦棠孙经武张颖萍高峰王新英

【机构】

：

天津大学应用化学系

【出处】

：

高分子材料科学与工程

【发表日期】

：

2004年期

【关键词】

：

二氧化碳环氧氯丙烷环氧树脂稀土络合催化体系

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以稀土络合体系RE(P204)3-Al[CH2CH(CH3)2]3(RE=Y,Nd,Pr,Sm,Dy,Eu);P204=(RO)2POO-,R=CH3(CH2)3CH(C2H5)CH2-催化二氧化碳(CO2)与环氧氯丙烷(ECH)无规共聚/,合成高分子量的新型聚碳酸酯.同时利用此催化体系对CO2、ECH、环氧树脂(EP(618))进行三元共聚,采用元素分析、红外光谱、广角X射线衍射及热重分析(TG)对催化体系及其共聚物以表征.共聚物具有结晶结构.加入EP(618)后,聚合物的半寿温度及最大分解速度温度均提高.

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稀土络合催化二氧化碳和环氧化物的共聚反应

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