MICROWAVE PREPARATION OF EMULSIFIER-FREE CATIONIC PMMA LATEX PARTICLE

TANG Yecang; LUO Shizhong; WU Zhengcui; SUN Yimin

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MICROWAVE PREPARATION OF EMULSIFIER-FREE CATIONIC PMMA LATEX PARTICLE

Research Article | 更新时间：2021-03-19

- MICROWAVE PREPARATION OF EMULSIFIER-FREE CATIONIC PMMA LATEX PARTICLE
- Acta Polymerica Sinica Issue 4, Pages: 443-446(2002)
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- Published：20 August 2002，
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TANG Yecang, LUO Shizhong, WU Zhengcui, SUN Yimin. MICROWAVE PREPARATION OF EMULSIFIER-FREE CATIONIC PMMA LATEX PARTICLE. [J]. Acta Polymerica Sinica (4):443-446(2002)
DOI：

TANG Yecang, LUO Shizhong, WU Zhengcui, SUN Yimin. MICROWAVE PREPARATION OF EMULSIFIER-FREE CATIONIC PMMA LATEX PARTICLE. [J]. Acta Polymerica Sinica (4):443-446(2002) DOI：

摘要

在微波辐照条件下

用偶氮二异丁基脒盐酸盐 (AIBA)引发甲基丙烯酸甲酯的均聚

制得窄分散的无皂阳离子胶乳粒子 .讨论了引发剂的浓度、单体的浓度、离子强度等对粒子大小、分散性和乳液稳定性的影响 .对微波辐照和水浴加热进行比较

发现微波辐照反应速度快、反应无恒速阶段

所得粒子的粒径小

粒子数目多

这为通过改变反应条件制备适宜的窄分散的胶乳粒子提供了一条途径 .

Abstract

Narrowly distributed emulsifier-free cationic polymethylmethacrylate latex particles were prepared by using microwave irradiation in the presence of initiator 2

2′-azobis isobutyramidine dihydrochloride．The effects of initiator concentration

monomer concentration

ionic strength and heating method on the size

shape and stability of latex particles were discussed．Results showed that the average particle size increased with increasing the monomer concentration and ionic strength．The stability of latex had similar tendency of chage．However

it initially decreased with the increase of the initiator concentration

passed through a minimum

and then increased．In comparison with the conventional heating method

using microwave irradiation increased reaction rate and number of particles

and decreased particle diameter．No constant rate stage existed in the reaction．The method presented here is useful to prepare other type of latex particles.

关键词

无皂乳液聚合微波辐照聚甲基丙烯酸甲酯窄分散粒子

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Related Institution

College of Science, Dalian Ocean University

Institute of Polymer Science,School of Chemistry and Chemical Engineering Zhongshan University

中山大学化学与化学工程学院高分子研究所

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