Methacrylate Single-Ion Conducting Block Copolymers: Effect of the Chemical Structure on Conductivity and Morphological Organization
Authors
Lozinskaya E.I., Ponkratov D.O., Shaplov A.S., Malyshkina I.A., Streltsov D.R., Bakirov A.V.
Reference
Polymer Science - Series A, vol. 65, n° 1, pp. 36-52, 2023
Description
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.
