Structural Evolution of Microgels During Precipitation Polymerization Revealed by Light Scattering and Electrophoresis

IF 1.8 4区 工程技术 Q3 ENGINEERING, CHEMICAL
Yuji Sato, Ryuji Namioka, Yuichiro Nishizawa, Daisuke Suzuki
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引用次数: 0

Abstract

While precipitation polymerization allows the synthesis of microgels with controlled functional-group distributions, the structural development of these microgels during the polymerization process still remains unclear. In this study, microgels with different reactivity ratios between the monomer and charged co-monomer are prepared by precipitation polymerization, and the evolution of their size, thermoresponsive behavior, and surface properties during polymerization are evaluated. In particular, the surface properties of the microgels are analyzed quantitatively using the softness parameter and the surface charge density is calculated using Ohshima's equation. The results allowed describing the structural changes of microgels during precipitation polymerization well and provided design guidelines for functional microgels with controlled functional group distributions.

Abstract Image

光散射和电泳研究微凝胶在沉淀聚合过程中的结构演变
虽然沉淀聚合可以合成具有控制官能团分布的微凝胶,但这些微凝胶在聚合过程中的结构发展仍然不清楚。本研究采用沉淀聚合法制备了单体与带电共聚物之间具有不同反应性比的微凝胶,并对其尺寸、热响应行为和表面性质在聚合过程中的演变进行了评价。利用软性参数定量分析了微凝胶的表面性质,利用Ohshima方程计算了微凝胶的表面电荷密度。该结果可以很好地描述微凝胶在沉淀聚合过程中的结构变化,并为控制官能团分布的功能微凝胶设计提供指导。
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来源期刊
Macromolecular Reaction Engineering
Macromolecular Reaction Engineering 工程技术-高分子科学
CiteScore
2.60
自引率
20.00%
发文量
55
审稿时长
3 months
期刊介绍: Macromolecular Reaction Engineering is the established high-quality journal dedicated exclusively to academic and industrial research in the field of polymer reaction engineering.
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