Stimuli-responsive aggregation of high molar mass poly(N,N-diethylacrylamide)-b-poly(4-acryloylmorpholine) in tetrahydrofuran

Plucinski, A., Pavlovic, M., Clarke, M. , Bhella, D. and Schmidt, B. V.K.J. (2022) Stimuli-responsive aggregation of high molar mass poly(N,N-diethylacrylamide)-b-poly(4-acryloylmorpholine) in tetrahydrofuran. Macromolecular Rapid Communications, 43(3), 2100656. (doi: 10.1002/marc.202100656) (PMID:34783099)

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Abstract

The self-assembly of block copolymers constitutes a timely research area in polymer science with implications for applications like sensing or drug-delivery. In here, we investigate the unprecedented aggregation behaviour of high molecular weight block copolymer poly(N,N-diethylacrylamide)-b-poly(4-acryloylmorpholine) (PDEA-b-PAM) (Mn>400 kg/mol) in organic solvent tetrahydrofuran (THF). To elucidate the aggregation, dynamic light scattering, cryo transmission electron microscopy and turbidimetry were employed. The aggregate formation was assigned to the unprecedented upper critical solution temperature behaviour of PAM in THF at elevated concentration (> 6 wt%) and high molar masses. Various future directions for this new thermo-responsive block copolymer are envisioned, e.g. in the areas of photonics or templating of inorganic structures.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Clarke, Dr Mairi and Plucinski, Alexander and Schmidt, Dr Bernhard and Bhella, Professor David
Authors: Plucinski, A., Pavlovic, M., Clarke, M., Bhella, D., and Schmidt, B. V.K.J.
College/School:College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation
College of Science and Engineering > School of Chemistry
College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation > Centre for Virus Research
Journal Name:Macromolecular Rapid Communications
Publisher:Wiley
ISSN:1022-1336
ISSN (Online):1521-3927
Published Online:15 November 2021
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in Macromolecular Rapid Communications 43(3): 2100656
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
301445The Scottish Macromolecular Imaging Centre (SMIC)David BhellaMedical Research Council (MRC)MC_PC_17135III - Centre for Virus Research
301474The purchase and maintenance of a cryo-electron microscopeDavid BhellaScottish Funding Council (SFC)H17007III - Centre for Virus Research
656541Structural studies of human viruses and host interactionsDavid BhellaMedical Research Council (MRC)MC_UU_12014/7MVLS III - CENTRE FOR VIRUS RESEARCH