Methacrylate Single-Ion Conducting Block Copolymers: Effect of the Chemical Structure on Conductivity and Morphological Organization

IF 1 4区化学 Q4 POLYMER SCIENCE

Polymer Science, Series A Pub Date : 2023-07-03 DOI:10.1134/S0965545X2370075X

E. I. Lozinskaya, D. O. Ponkratov, A. S. Shaplov, I. A. Malyshkina, D. R. Streltsov, A. V. Bakirov

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Abstract

A series of novel anionic block copolymers, in which the neutral block is formed by 2-phenylethyl methacrylate (PEM) and the ionic block is prepared via statistical copolymerization of lithium 1-[3-(methacryloyloxy)-propylsulfonyl]-1-(trifluoromethanesulfonyl)imide (LiM) and methyl ether of poly(ethylene glycol) methacrylate (PEGM) have been synthesized. The effects of chemical structure, composition, and molecular mass of the blocks on ionic conductivity and thermal properties of the poly[PEM–block–(LiM–stat–PEGM)] block copolymers have been investigated. It has been found by means of small-angle X-ray scattering that the introduction of a small fraction of the lithium-containing units (~7 mol %) in the structure of neutral poly[PEM–block–PEGM] copolymer leads to microphase separation and ordering of the system. Combined small-angle X-ray scattering and atomic force microscopy data have evidenced the formation of lamellar structure with the interplanar distance of d ~ 28 nm.

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甲基丙烯酸酯单离子导电嵌段共聚物:化学结构对电导率和形态组织的影响

本文合成了一系列新型阴离子嵌段共聚物，其中中性嵌段由2-苯基甲基丙烯酸乙酯(PEM)形成，离子嵌段由1-[3-(甲基丙烯酰氧基)-丙基磺酰基]-1-(三氟甲烷磺酰基)亚胺(LiM)和聚乙二醇甲基丙烯酸甲酯(PEGM)甲基醚统计共聚而成。研究了聚[pem -嵌段- (LiM-stat-PEGM)]嵌段共聚物的化学结构、组成和分子质量对其离子电导率和热性能的影响。通过小角度x射线散射发现，在中性聚[pem -嵌段- pegm]共聚物结构中引入一小部分含锂单元(~7 mol %)可导致体系的微相分离和有序。结合小角x射线散射和原子力显微镜数据证实了层状结构的形成，其面间距为d ~ 28 nm。

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来源期刊

Polymer Science, Series A 化学-高分子科学

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Polymer Science, Series A is a journal published in collaboration with the Russian Academy of Sciences. Series A includes experimental and theoretical papers and reviews devoted to physicochemical studies of the structure and properties of polymers (6 issues a year). 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. Online submission via Internet to the Series A, B, and C is available at http://polymsci.ru.