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PEG-based methacrylate tetrablock terpolymers: how does the architecture control the gelation?

Title: PEG-based methacrylate tetrablock terpolymers: how does the architecture control the gelation?
Authors: Constantinou, AP
Zhang, K
Somuncuoğlu, B
Feng, B
Georgiou, TK
Item Type: Journal Article
Abstract: An ABCA tetrablock terpolymer with excellent thermogelling properties in aqueous solutions has been identified by tuning the architecture of ethylene glycol-based tetrablock terpolymers. Specifically, it gels at concentrations as low as 5 wt % at a wide range of temperatures, including body temperature. Nine tetrablock copolymers based on hydrophilic oligo(ethylene glycol) methyl ether methacrylate with average molar mass (MM) 300 g mol–1 (OEGMA300, A), hydrophobic n-butyl methacrylate (BuMA, B), and hydrophilic and thermoresponsive di(ethylene glycol) methyl ether methacrylate (DEGMA, C) were synthesized and screened. The MM and composition were kept constant, while the tetrablock architecture was systematically varied. Specifically, copolymers with (i) two OEGMA300 blocks (ABCA, ABAC, and ACAB), (ii) two BuMA blocks (BACB, BABC, and ABCB), and (iii) two DEGMA blocks (CABC, CACB, and ACBC) were fabricated. The self-assembly and thermoresponsive properties of their aqueous solutions were investigated with the polymer architecture governing their solubility, micellization, thermoresponsive, and rheological properties.
Issue Date: 13-Jul-2021
Date of Acceptance: 7-Jun-2021
URI: http://hdl.handle.net/10044/1/89701
DOI: 10.1021/acs.macromol.1c00349
ISSN: 0024-9297
Publisher: American Chemical Society (ACS)
Start Page: 6511
End Page: 6524
Journal / Book Title: Macromolecules
Volume: 54
Issue: 13
Copyright Statement: © 2021 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, after peer review and technical editing by the publisher. To access the final edited and published work see ttps://doi.org/10.1021/acs.macromol.1c00349
Sponsor/Funder: Engineering and Physical Sciences Research Council
Engineering & Physical Science Research Council (E
Funder's Grant Number: EP/R511547/1
Keywords: 03 Chemical Sciences
09 Engineering
Publication Status: Published
Open Access location: https://onlinelibrary.wiley.com/doi/10.1002/pol.20210371
Article Number: acs.macromol.1c00349
Online Publication Date: 2021-06-16
Appears in Collections:Materials
Faculty of Engineering