P(MMA-EA-AA)共聚物组成对无皂乳胶粒碱处理后结构形态的影响——异型结构粒子的形成

康凯; 阚成友; 杜奕; 刘德山

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P(MMA-EA-AA)共聚物组成对无皂乳胶粒碱处理后结构形态的影响——异型结构粒子的形成

研究论文 | 更新时间：2021-03-19

- P(MMA-EA-AA)共聚物组成对无皂乳胶粒碱处理后结构形态的影响——异型结构粒子的形成
- INFLUENCES OF COPOLYMER COMPOSITIONS ON THE MORPHOLOGY OF P(MMA-EA-AA) SOAP-FREE LATEX PARTICLES PREPARED IN ALKALI POSTTREATMENT —— THE GENERATION OF ANOMALOUS PARTICLES
- 高分子学报 2005年第3期页码：427-431
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- 纸质出版日期：2005-6-20，
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康凯, 阚成友, 杜奕, 刘德山. P(MMA-EA-AA)共聚物组成对无皂乳胶粒碱处理后结构形态的影响——异型结构粒子的形成[J]. 高分子学报, 2005,(3):427-431.

KANG Kai, KAN Chengyou, DU Yi, LIU Deshan. INFLUENCES OF COPOLYMER COMPOSITIONS ON THE MORPHOLOGY OF P(MMA-EA-AA) SOAP-FREE LATEX PARTICLES PREPARED IN ALKALI POSTTREATMENT —— THE GENERATION OF ANOMALOUS PARTICLES[J]. Acta Polymerica Sinica, 2005,(3):427-431.
康凯, 阚成友, 杜奕, 刘德山. P(MMA-EA-AA)共聚物组成对无皂乳胶粒碱处理后结构形态的影响——异型结构粒子的形成[J]. 高分子学报, 2005,(3):427-431. DOI：

KANG Kai, KAN Chengyou, DU Yi, LIU Deshan. INFLUENCES OF COPOLYMER COMPOSITIONS ON THE MORPHOLOGY OF P(MMA-EA-AA) SOAP-FREE LATEX PARTICLES PREPARED IN ALKALI POSTTREATMENT —— THE GENERATION OF ANOMALOUS PARTICLES[J]. Acta Polymerica Sinica, 2005,(3):427-431. DOI：

摘要

采用批量法无皂乳液聚合技术合成了粒径窄分布的甲基丙烯酸甲酯(MMA)-丙烯酸乙酯(EA)-丙烯酸(AA)三元共聚物胶乳

并通过碱后处理

制备出了具有异型结构的乳胶粒

探讨了AA用量及MMA/EA质量比对胶粒结构形态的影响.结果表明

当AA含量大于0.04mol时

胶乳中开始出现异型结构粒子

随着AA用量的增加和MMA/EA质量比的减小

异型粒子在胶乳中所占比例增加

胶粒体积先增大后减小.当EA用量较高时

粒子边界模糊

异型结构不明显.

Abstract

Monodispersed latex particles were synthesized by soap-free batch emulsion polymerization of methyl methacrylate(MMA)

ethyl acrylate (EA) and acrylic acid (AA)

and the anomalous structure in the particles were obtained after alkali posttreatment．Effects of AA amount and the mass ratio of MMA to EA on the latex properties before and after the posttreatment were investigated．Results showed that when AA amount was more than 0.04 mol

anomalous particles were generated and heterogeneity in the formation of anomalous structure was observed in the treated latices With the increase of amounts of AA and the decrease of the mass ratio of MMA to EA

the percentage of anomalous particles increased

and their volume expansion increased and then decreased．The edge of particles blurred and the anomalous structure was not obvious in TEM photographs as large amount of EA was used．

关键词

无皂乳胶粒碱后处理异型结构甲基丙烯酸甲酯共聚物组成

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