| 功能化聚乳酸大分子单体的合成与表征 |
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| 引用本文： | 罗丙红,周长忍,梁敏,缪婧,杨媛.功能化聚乳酸大分子单体的合成与表征[J].中山大学学报(自然科学版),2005,44(3):67-70. |
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| 作者姓名： | 罗丙红 周长忍 梁敏 缪婧 杨媛 |
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| 作者单位： | 暨南大学理工学院,广东,广州,510632 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金 |
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| 摘 要： | 以辛酸亚锡为催化剂、甲基丙烯酸羟乙酯(HEMA)为共引发剂引发消旋-丙交酯(D,L-LA)开环聚合,制备了末端双键功能化的聚乳酸大分子单体(MC),采用FT-IR、 1H NMR、GPC、拉伸强度和表面接触角测定等方法研究了大分子单体的结构与性能.结果表明,大分子单体中HEMA结构单元的含量与单体投料比中HEMA的含量基本一致;单体投料比对大分子单体的结构与性能有显著影响.
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| 关 键 词： | 聚乳酸 功能化 大分子单体 |
| 文章编号： | 0529-6579(2005)03-0067-04 |
| 修稿时间： | 2005年1月26日 |
Synthesis and Characterization of Functional PLA Macromonomer |
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| LUO Bing-hong,ZHOU Chang-ren,LIANG Min,MIAO Jing,YANG Yuan.Synthesis and Characterization of Functional PLA Macromonomer[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2005,44(3):67-70. |
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| Authors: | LUO Bing-hong ZHOU Chang-ren LIANG Min MIAO Jing YANG Yuan |
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| Abstract: | Poly(D,L_lactide) macromonomers(MC) with a functional end double bond were synthesized by bulk ring_opening polymerization of D,L_lactide(D,L_LA) using stannous 2_ethyl hexanoate(Sn(Oct)_2) as catalyst and 2_hydroxyethyl methacrylate(HEMA) as co_initiator. Their structures and properties were characterized by FT_IR,~1H NMR, GPC, mechanical strength and surfacial contact angle measurements. The results showed that the molar fractions of HEMA unit in the macromonomers were rather close to the feed molar fractions of HEMA, and the feed molar ratio had significant influence on the structure and properties of the copolymers. |
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| Keywords: | polylactide(PLA) functional mcaromonomer(MC) |
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