| 聚乳酸的合成、结构及性能 |
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| 引用本文： | 常青. 聚乳酸的合成、结构及性能[J]. 高分子材料科学与工程, 1994, 10(1): 140-143 |
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| 作者姓名： | 常青 |
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| 作者单位： | 兰州铁道学院环境工程系 |
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| 摘 要： | 乳酸经减压蒸馏制得单体丙交酯，再以氧化锌为催化剂聚合得到聚乳酸。单体及聚合物均由结构鉴定证实，对产物的分子量、力学性能及降解等重要性质作了研究。
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| 关 键 词： | 丙交酯，聚乳酸，分子量，力学性能，降解。 |
SYNTHESIS OF POLYLACTIC ACID AND ITS STRUCTURE AND PROPERTIES |
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| Chang Qing. SYNTHESIS OF POLYLACTIC ACID AND ITS STRUCTURE AND PROPERTIES[J]. Polymer Materials Science & Engineering, 1994, 10(1): 140-143 |
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| Authors: | Chang Qing |
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| Abstract: | Lactide monomer was obtained by vacuum distillation of lactic acid.After purification by recrystallization, the lactide was polymerized to polylactic acid with zinc oxide as the catalyst.The molecular structure of products,both the lactide and the polylactic acid were characterized by NMR ,MS and IR respectively.Some important properties,such as molecular weight,the content of zinc in the product,mechanics and degradation, were studied. |
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| Keywords: | s:lactide polylactic acid degradation mechanies molecular weight. |
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