| 低相对分子质量的聚乙烯醇的合成研究 |
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| 引用本文： | 王久芬,徐宏妍,段红万.低相对分子质量的聚乙烯醇的合成研究[J].中北大学学报,2005,26(4):285-288. |
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| 作者姓名： | 王久芬 徐宏妍 段红万 |
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| 作者单位： | 中北大学化学工程系 山西太原030051
(王久芬，徐宏妍)，中北大学化学工程系 山西太原030051(段红万) |
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| 摘 要： | 聚乙烯醇(PVA)是重要的水溶性聚合物.低相对分子质量的PVA被广泛应用于化妆品、食品、医药和农业等领域.采用溶液聚合法,以醋酸乙烯为单体,偶氮二异丁腈为引发剂,甲醇为溶剂,加入分子量调节剂,通过多次实验优化实验条件,合成低相对分子质量的聚醋酸乙烯(PVAc),后者以NaOH为催化剂,经醇解得到了外观为白色粉末状、平均聚合度为600,醇解度为80%的低相对分子质量的PVA产品.
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| 关 键 词： | 聚醋酸乙烯 聚乙烯醇 低相对分子质量 醇解度 |
| 文章编号： | 1006-5431(2005)04-0285-04 |
| 修稿时间： | 2004年10月15 |
Synthesis of PVA with Low Molecular Weight |
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| WANG Jiu-fen,XU Hong-yan,DUAN Hong-wan.Synthesis of PVA with Low Molecular Weight[J].Journal of North University of China,2005,26(4):285-288. |
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| Authors: | WANG Jiu-fen XU Hong-yan DUAN Hong-wan |
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| Abstract: | PVA is one of the important water-soluble polymer, and PVA with low molecular weight has been widely used in many fields, such as cosmetics, foods, medicine, etc. In this study, the low molecular weight PVA was produced by solution polymerization, in which VAc was used as monomer, ABIN as initiator and methanol as solvent. In this experiment, by adding molecular adjustor and optimizing the experimental condition through orthogonal test, low molecular weight PVAc was firstly synthesized and then with NaOH as catalyst, white PVA particles with low molecular weight were synthesized. For this PVA, the average degree of polymerization is 600, the degree of alcoholysis is 80%. |
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| Keywords: | PVAc PVA low molecular weight degree of alcoholysis |
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