| 可生物降解多嵌段聚乳酸共聚物合成研究 |
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| 引用本文： | 褚艳红,张国宝,赵根锁,余守志.可生物降解多嵌段聚乳酸共聚物合成研究[J].河南工业大学学报(自然科学版),2003,24(4):59-63. |
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| 作者姓名： | 褚艳红 张国宝 赵根锁 余守志 |
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| 作者单位： | 1. 河南大学,化学化工学院,河南,开封,475001;河南省分析测试中心,河南,郑州,450002
2. 河南省分析测试中心,河南,郑州,450002 |
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| 基金项目： | 河南省自然科学基金项目(011103200). |
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| 摘 要： | 以氧化锌为催化剂,使左旋丙交酯(LLA)与聚乙二醇(PEG600)开环共聚,得到三嵌段(HO PLLA PEG PLLA OH)预聚物;再以甲苯二异氰酸酯TD1 80为扩链剂对其进行扩链,得到多嵌段共聚物.采用核磁共振、红外光谱、凝胶渗透色谱等对目标产物的结构、分子量分布进行了表征;同时用变温红外法研究了与LLA结晶相关谱带的位置,并对其进行了归属.
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| 关 键 词： | 聚乳酸 多嵌段共聚物 |
| 文章编号： | 1671-1629(2003)04-0059-05 |
| 修稿时间： | 2003年7月12日 |
SYNTHESIS OF BIODEGRADABLE POLY(L-LACTIDE) MULTIBLOCK COPOLYMER |
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| CHU Yan-hong.SYNTHESIS OF BIODEGRADABLE POLY(L-LACTIDE) MULTIBLOCK COPOLYMER[J].Journal of Henan University of Technology Natural Science Edition,2003,24(4):59-63. |
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| Authors: | CHU Yan-hong |
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| Affiliation: | CHU Yan-hong~ |
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| Abstract: | A series of multiblock copolymers were synthesized by polycondensations of tri-block pre-polymers diols(HO-PLLA-PEG-PLLA-OH) and diisocyanatoluene(TDI-80).The pre-polymers were obtained by ring-opening polymerizations of L-Lactide and poly(ethylene glycol)(PEG600)with ZnO as catalyst.Chains structure and molecular weight distribution of multiblock copolymers were characterized by IR, NMR and GPC.The positions and assignments of peaks linked with crystalline of LLA were studied by variable temperature FTIR spectral method. |
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| Keywords: | polylactide multiblock copolymer |
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