| 聚乳酸接枝乙烯基吡咯烷酮的初步研究 |
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| 引用本文： | 罗丙红,全大萍,廖凯荣,卢泽俭.聚乳酸接枝乙烯基吡咯烷酮的初步研究[J].中山大学学报(自然科学版),2001,40(5):62-64. |
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| 作者姓名： | 罗丙红 全大萍 廖凯荣 卢泽俭 |
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| 作者单位： | 中山大学高分子研究所 |
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| 基金项目： | 广东省自然科学基金资助项目(970160) |
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| 摘 要： | 为改善聚（D，L－乳酸）（PDLLA）的亲水性，以过氧化二苯甲酰为引发剂，四氢呋喃为溶剂，进行了PDLLA接枝乙烯基吡咯烷酮（VP）的试验。IR和^1H NMR测试结果表明：PDLLA可与VP实现接枝反应，摩尔接枝率为1．0％－1．6％。与PDLLA相比，接枝产物的η]值下降，但吸水率增加、接触角变小，亲水性有所改善。
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| 关 键 词： | 聚（D L－乳酸） 乙烯基吡咯烷酮 接枝共聚 亲水性 聚乳酸 |
| 文章编号： | 0529-6579(2001)05-0062-03 |
| 修稿时间： | 2001年1月12日 |
The Preliminary Research on the Graft Copolymerizationof Poly( D,L -lactic Acid)
with Vinyl Pyrrolidone |
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| LUO Bing-hong,QUA Da-ping,LIAO Kai-rong,LU Ze-jian.The Preliminary Research on the Graft Copolymerizationof Poly( D,L -lactic Acid)
with Vinyl Pyrrolidone[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2001,40(5):62-64. |
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| Authors: | LUO Bing-hong QUA Da-ping LIAO Kai-rong LU Ze-jian |
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| Abstract: | In order to improve the hydrophilicity of poly ( D, L-lactic acid) (PDLLA), vinyl pyrrolidone (VP) was grafted onto PDLLA chains by free-radical polymerization with benzoyl peroxide (BPO) as initiator and tetrahydrofu- ran (THF) as solvent. JR and 1H NMR results showed that the graft copolymerization of PDLLA with VP occurred, and the graft mole ratio was about 1.0% - 1.6%. Compared with the pure PDLLA, the grafted copolymers showed higher water take-up, lower contact angle and better hydrophilicity although the intrinsic viscosity decreased. |
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| Keywords: | poly( D L-lactic acid) vinyl pyrrolidone graft copolymerization hydrophilicity |
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