带正电荷的聚（甲基丙烯酸甲酯）胶乳颗粒在三氟甲磺酸阴离子存在下的聚合作用

IF 1.4 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Chemistry Letters Pub Date : 2024-07-24 DOI:10.1093/chemle/upae136

Takashi Yamazaki, Toshikazu Tsuji

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引用次数: 0

摘要

我们研究了 3 种带正电荷的聚（甲基丙烯酸甲酯）（PMMA）胶乳粒子在三氟甲磺酸盐（三氟酸盐）阴离子存在下的独特聚集行为。这些颗粒是在使用偶氮自由基引发剂进行无表面活性剂乳液聚合的基础上制备的。电泳证实，带正电荷的 PMMA 胶乳颗粒表面强烈吸附了三氟甲基磺酸盐阴离子。此外，与其他阴离子相比，它的存在大大降低了阳离子 PMMA 胶乳颗粒的临界凝结浓度。

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Aggregation of positively charged poly(methyl methacrylate) latex particles in the presence of trifluoromethanesulfonate anion

We investigated the unique aggregation behavior of 3 types of positively charged poly(methyl methacrylate) (PMMA) latex particles in the presence of a trifluoromethanesulfonate (triflate) anion. The particles were prepared based on surfactant-free emulsion polymerization using azo radical initiators. The triflate anion was strongly adsorbed to surfaces of positively charged PMMA latex particles, as confirmed by electrophoresis. Additionally, its presence significantly reduced the critical coagulation concentration of the cationic PMMA latex particles compared with other anions.

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来源期刊

Chemistry Letters 化学-化学综合

CiteScore

3.00

自引率

6.20%

发文量

260

审稿时长

1.2 months

期刊介绍： Chemistry Letters covers the following topics: -Organic Chemistry- Physical Chemistry- Inorganic Chemistry- Analytical Chemistry- Materials Chemistry- Polymer Chemistry- Supramolecular Chemistry- Organometallic Chemistry- Coordination Chemistry- Biomolecular Chemistry- Natural Products and Medicinal Chemistry- Electrochemistry