| HECS-g-PDLLA共聚物的微波合成及与聚乳酸的相容性 |
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| 引用本文： | 罗丙红,钟翠红,周长忍,徐宠恩.HECS-g-PDLLA共聚物的微波合成及与聚乳酸的相容性[J].高分子材料科学与工程,2011(7):1-4. |
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| 作者姓名： | 罗丙红 钟翠红 周长忍 徐宠恩 |
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| 作者单位： | 暨南大学理工学院材料科学与工程系;人工器官与材料教育部工程中心 |
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| 基金项目： | 国家自然科学基金资助项目(30500128);国家科技部高技术研究计划项目(863计划)(2007AA091603);暨南大学“211“生物材料与组织工程”平台”创新基金项目 |
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| 摘 要： | 在微波作用下,以辛酸亚锡为催化剂,羟乙基壳聚糖（HECS）为大分子引发剂引发D,L-丙交酯（D,L-LA）开环聚合制备羟乙基壳聚糖-g-聚乳酸（HECS-g-PDLLA）,通过红外（IR）、元素分析（EA）、氢核磁共振（1H-NMR）、X射线衍射（XRD）和差示扫描量热分析（DSC）对产物进行了表征。然后采用溶液共混法...
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| 关 键 词： | 壳聚糖 聚乳酸 羟乙基壳聚糖-g-聚乳酸 复合膜 相容性 |
Microwave-Assisted Synthesis of HECS-g-PDLLA Copolymer and Its Compatibility with Poly(D,L-Lactide) |
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| Binghong Luo,Cuihong Zhong,Changren Zhou,Chongen Xu.Microwave-Assisted Synthesis of HECS-g-PDLLA Copolymer and Its Compatibility with Poly(D,L-Lactide)[J].Polymer Materials Science & Engineering,2011(7):1-4. |
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| Authors: | Binghong Luo Cuihong Zhong Changren Zhou Chongen Xu |
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| Affiliation: | 1,2(1.Department of Materials Science and Engineering,College of Science and Engineering,Jinan University;2.Engineering Research Center of Artificial Organs and Materials,Ministry of Education,Guangzhou 510632,China) |
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| Abstract: | (Hydroxyethyl chitosan)-g-poly(D,L-lactide)(HECS-g-PDLLA) copolymer was synthesized by ring-opening polymerization of D,L-lactide using hydroxyethyl chitosan(HECS) as macroinitiator and stannous 2-ethylhexanoate as catalyst under microwave-assisted.The copolymer was characterized by IR,EA,1H-NMR,XRD and DSC.Then a series of blend films were prepared by solution blending with poly(D,L-lactide)(PDLLA),chitosan(CS),HECS and HECS-g-PDLLA for raw materials.The compatibility of components was studied.The results show that HECS-g-PDLLA copolymer is prepared rapidly under microwave-assisted,and its crystallinity is weaker than hydroxyethyl chitosan.SEM results indicate that phase separation is obviously existent in CS/PDLLA blend film,and the dispersion of chitosan in PDLLA matrix is heterogeneous.The compatibility of HECS/PDLLA blend film has been improved,and the dispersion of HECS is homogeneous.The compatibility of HECS-g-PDLLA/PDLLA blend films is very well,with the content of HECS-g-PDLLA increasing,the compatibility has little change. |
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| Keywords: | chitosan poly(D L-lactide) HECS-g-PDLLA blend films compatibility |
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