| 微波辐射D,L-丙交酯开环聚合制备聚乳酸 |
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| 引用本文： | 张英民,王鹏,韩宁,雷海芬,李悦.微波辐射D,L-丙交酯开环聚合制备聚乳酸[J].材料科学与工艺,2009,17(2):288-292. |
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| 作者姓名： | 张英民 王鹏 韩宁 雷海芬 李悦 |
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| 作者单位： | 张英民,ZHANG Ying-min(哈尔滨工业大学,市政环境工程学院绿色化学与技术研究中心,哈尔滨,150090;环境保护部,华南环境科学研究所,广州,510655);王鹏,韩宁,雷海芬,李悦,WANG Peng,HAN Ning,LEI Hai-fen,LI Yue(哈尔滨工业大学,市政环境工程学院绿色化学与技术研究中心,哈尔滨,150090)
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| 基金项目： | 哈尔滨市科技攻关项目 |
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| 摘 要： | 为得到聚乳酸的最佳制备工艺,利用微波辐射技术实现D,L-丙交酯开环聚合制备聚乳酸,实验考查了催化剂种类和用量,微波辐照功率和时间等工艺参数对产物分子量的影响,以及反应过程中体系温度的变化.研究表明,以连续微波炉作为反应器,催化剂Sn(Oct)2用量为丙交酯单体用量的0.56%(质量分数),在功率为90 W的连续微波辐射下反应10 m in,可获得粘均分子量(Mη)为15.92×104的聚乳酸(PDLLA).与家用微波炉相比,采用连续微波炉反应器,可在较短的反应时间内获得较高产率的聚乳酸产物.
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| 关 键 词： | 微波辐射 开环聚合 D L-丙交酯 聚乳酸 环境友好材料 |
Synthesis of poly(lactic acid) from D,L-lactide with ring-opening polymerization under microwave irradiation |
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| ZHANG Ying-min,WANG Peng,HAN Ning,LEI Hai-fen,LI Yue.Synthesis of poly(lactic acid) from D,L-lactide with ring-opening polymerization under microwave irradiation[J].Materials Science and Technology,2009,17(2):288-292. |
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| Authors: | ZHANG Ying-min WANG Peng HAN Ning LEI Hai-fen LI Yue |
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| Affiliation: | 1.Research Center for Green Chemistry and Technology;School of Municipal and Environmental Engineering;Harbin Institute of Technology;Harbin 150090;China;2.South China Institute of Environmental Sciences;Ministry of Environmental Protection of the People's Republic of China;Guangzhou 510655;China |
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| Abstract: | In order to get optimum technological conditions for the preparition of poly(D,L-lactide),ring-opening polymerization(ROP) of D,L-lactide(DLLA) was studied to produce poly(D,L-lactide) by microwave irradiation.The effects of microwave power and irradiation time,species and dosage of catalyst on the molecular weight of poly(lactic acid)(PLA) were investigated,and the temperature variation in the reaction process was examined.The results show that the poly(D,L-lactide)(PDLLA) with viscosity-average molecular ... |
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| Keywords: | microwave irradiation ring-opening polymerization D L-lactide poly(D L-lactide) environmentally friendly materials |
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