Amino- and Sulfo-Containing Molecular Brushes Based on Oligo(ethylene glycol) (Meth)Acrylates: Synthesis and Properties in Solutions

IF 1.6 4区 化学 Q4 POLYMER SCIENCE Polymer Science, Series C Pub Date : 2022-09-13 DOI:10.1134/S1811238222700175
A. S. Simagin, M. V. Savinova, D. M. Kamorin, O. A. Kazantsev, D. V. Orekhov, M. A. Simonova, S. V. Orekhov
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引用次数: 1

Abstract

Amphiphilic sulfo- or amino-containing molecular brushes are synthesized by the radical copolymerization of methacrylic esters containing oligo(ethylene glycol) and/or oligo(propylene glycol) blocks of varying length and arrangement with 2-acrylamido-2-methylpropanesulfonic acid or N-(3-dimethylaminopropyl)methacrylamide in solutions (water, ethyl acetate, toluene). In copolymerization with 2-acrylamido-2-methylpropanesulfonic acid in water, the compositional homogeneity of the copolymers grows appreciably with increasing concentration of initial solutions. It is shown that the structure of macromonomers has almost no effect on their reactivity ratios in copolymerization with N-(3-dimethylaminopropyl)methacrylamide in organic solvents. The synthesized amino-containing molecular brushes exhibit stimuli-responsive properties in aqueous solutions, and the arrangement of hydrophilic and hydrophobic blocks in the side chains of macromolecules affects dependences of the phase transition temperature on polymer concentration and рН.

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基于低聚乙二醇(甲基)丙烯酸酯的含氨基和含亚砜分子刷:合成及其在溶液中的性能
两亲性含硫或氨基分子刷是由含有不同长度和排列的低聚(乙二醇)和/或低聚(丙二醇)嵌段的甲基丙烯酸酯与2-丙烯酰胺-2-甲基丙磺酸或N-(3-二甲氨基丙基)甲基丙烯酰胺在溶液(水、乙酸乙酯、甲苯)中自由基共聚合成的。与2-丙烯酰胺-2-甲基丙磺酸在水中共聚时,随着初始溶液浓度的增加,共聚物的组成均匀性明显增强。结果表明,在有机溶剂中,高分子单体的结构对其与N-(3-二甲氨基丙基)甲基丙烯酰胺的共聚反应活性几乎没有影响。合成的含氨基分子刷在水溶液中表现出刺激响应特性,大分子侧链上亲疏水嵌段的排列影响了聚合物浓度和рН对相变温度的依赖性。
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来源期刊
Polymer Science, Series C
Polymer Science, Series C 工程技术-高分子科学
CiteScore
3.00
自引率
4.50%
发文量
21
审稿时长
>12 weeks
期刊介绍: Polymer Science, Series C (Selected Topics) is a journal published in collaboration with the Russian Academy of Sciences. Series C (Selected Topics) includes experimental and theoretical papers and reviews on the selected actual topics of macromolecular science chosen by the editorial board (1 issue a year). Submission is possible by invitation only. All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed
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