| 生物降解材料胆酸-乳酸共聚物的热性能研究 |
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| 引用本文： | 王群芳,汪朝阳,赵海军,侯晓娜,罗玉芬.生物降解材料胆酸-乳酸共聚物的热性能研究[J].广州化学,2008,33(4):1-6. |
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| 作者姓名： | 王群芳 汪朝阳 赵海军 侯晓娜 罗玉芬 |
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| 作者单位： | 华南师范大学,化学与环境学院,广东,广州,510006 |
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| 基金项目： | 国家自然科学基金
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广东省自然学基金
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| 摘 要： | 通过直接熔融共聚法合成了系列的不同乳酸／胆酸组成比（LA／CA）的胆酸．乳酸共聚物，用DSC、TG等手段研究生物降解材料胆酸-乳酸共聚物的热性能。结果表明，共聚物的热性能与其组成、结构有关。LA／CA小的多核共聚物无明显熔融峰，热失重分两步进行；LA／CA大的单核共聚物出现明显双头熔融峰，其热失重一步进行，其Tg随着LA／CA增加而升高。
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| 关 键 词： | 生物降解材料 胆酸-乳酸共聚物 热性能 DSC TG |
Thermal Properties of Biodegradable Material Poly[(D,L-lactic acid)/cholicate] Copolymer |
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| WANG Qun-Fang,WANG Zhao-Yang,ZHAO Hai-Jun,HOU Xiao-Na,LUO Yu-Fen.Thermal Properties of Biodegradable Material Poly[(D,L-lactic acid)/cholicate] Copolymer[J].Guangzhou Chemistry,2008,33(4):1-6. |
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| Authors: | WANG Qun-Fang WANG Zhao-Yang ZHAO Hai-Jun HOU Xiao-Na LUO Yu-Fen |
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| Institution: | WANG Qun-Fang,WANG Zhao-Yang,ZHAO Hai-Jun,HOU Xiao-Na,LUO Yu-Fen (School of Chemistry , Environment,South China Normal University,Guangzhou 510006,China) |
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| Abstract: | Biodegradable material poly(D,L-lactic acid)/cholicate] copolymer with different structural unit ratio of LA/CA (D,L-lactic acid to cholic acid) was synthesized via direct melt copolycondensation. The copolymer was systematically characterized with GPC,1H NMR,DSC and TG,and their thermal characteristics were discussed in detail. The results indicated that,when LA/CA was less than 22/1,the copolymer with CA multi-core had no noticeable melting peak,and the thermal degradation process took place in two stage... |
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| Keywords: | DSC TG |
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