| 丙烯酸高级酯共聚物组成与其无皂乳液稳定性研究 |
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| 引用本文： | 王嘉图,席先峰,魏德卿. 丙烯酸高级酯共聚物组成与其无皂乳液稳定性研究[J]. 现代化工, 2004, 24(8): 39-41 |
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| 作者姓名： | 王嘉图 席先峰 魏德卿 |
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| 作者单位： | 中国科学院成都有机化学研究所,四川,成都,610041 |
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| 摘 要： | 制备了不同分子结构的丙烯酸高级酯共聚物无皂乳液,测定了丙烯酸和甲基丙烯酸十六酯的竟聚率,考察了共聚物的组成对无皂乳液电解质稳定性、机械稳定性和pH值稳定性的影响。结果显示,丙烯酸竟聚率为2.32,甲基丙烯酸十六酯竟聚率为0.59,随共聚物中丙烯酸组分含量增加,乳液粒子表面羧基含量增大,乳液机械稳定性和pH值稳定性提高,乳液适合在偏碱性条件下使用。
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| 关 键 词： | 丙烯酸十六酯 无皂乳液 乳液稳定性 |
| 文章编号： | 0253-4320(2004)08-0039-03 |
| 修稿时间： | 2004-03-25 |
Relation between hexadecyl methacrylate copolymer components and emulsion stability |
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| WANG Jia-tu,XI Xian-feng,WEI De-qing. Relation between hexadecyl methacrylate copolymer components and emulsion stability[J]. Modern Chemical Industry, 2004, 24(8): 39-41 |
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| Authors: | WANG Jia-tu XI Xian-feng WEI De-qing |
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| Abstract: | A series of copolymers poly(acrylic acid-co-hexadecyl methacrylate) with different feeds ratios were prepared.The momoner reactivity ratios of acrylic acid and hexadecyl methacrylate was measured as 2.32 and 0.59,respectively.The effect of copolymer components on the emulsion stability was investigated.The surface carboxyl group concentration of the particles increases with the increase of acrylic acid content in the feed.As a result,the anti-electrolyte stability of the copolymer emulsion was improved,as well as the anti-shear stability and anti-acid stability.The emulsion is suitable for use in basic conditions. |
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| Keywords: | hexadecyl methacrylate copolymer components emulsion stability |
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