Cookies

We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.


Durham Research Online
You are in:

The self-assembly and thermoresponsivity of poly(isoprene-b-methyl methacrylate) copolymers in non-polar solvents

Day, Daniel M. and Hutchings, Lian R. (2021) 'The self-assembly and thermoresponsivity of poly(isoprene-b-methyl methacrylate) copolymers in non-polar solvents.', European polymer journal., 156 . p. 110631.

Abstract

The self-assembly of a series of polyisoprene-block-poly(methyl methacrylate) (PI-b-PMMA) block copolymers, in aliphatic hydrocarbon solvents is reported for the first time. The block copolymers were prepared by a change of mechanism polymerisation (CHOMP) whereby living anionic polymerisation was used to prepare polyisoprene macroinitiators for ATRP (PI-Br), which was in turn used to polymerize MMA. The use of anionic polymerisation ensured optimal control over the molar mass and dispersity of the polyisoprene block, in a synthesis that is readily scaled-up, to enable the production of homologous series of block copolymers by varying only the molar mass of the PMMA block. The block copolymers were subsequently dispersed in n-decane or n-hexane, a selective solvent for the PI block, at high solids content of up to 30 wt%. Analysis of the resulting self-assembled nanostructures using DLS and TEM revealed that the block copolymers self-assemble into varying morphologies (spherical micelles, wormlike micelles or vesicles), dependent upon the molar mass and composition of the block copolymer, enabling the construction of a series of “phase-diagrams”. The resultant self-assembled structures were also found to be thermally responsive and, in some cases, underwent a change in morphology upon heating.

Item Type:Article
Full text:Publisher-imposed embargo until 03 July 2023.
(AM) Accepted Manuscript
Available under License - Creative Commons Attribution Non-commercial No Derivatives 4.0.
File format - PDF
(655Kb)
Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1016/j.eurpolymj.2021.110631
Publisher statement:© 2021 This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Date accepted:30 June 2021
Date deposited:02 August 2021
Date of first online publication:03 July 2021
Date first made open access:03 July 2023

Save or Share this output

Export:
Export
Look up in GoogleScholar