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Interfacial crosslinking of self‐assembled triblock copolymer nanoparticles via alkoxysilane hydrolysis and condensation

Teo, GH ORCID: 0000-0002-0713-3434, Zetterlund, PB and Thickett, SC ORCID: 0000-0002-8168-3856 2019 , 'Interfacial crosslinking of self‐assembled triblock copolymer nanoparticles via alkoxysilane hydrolysis and condensation' , Journal of Polymer Science, Part A: Polymer Chemistry, vol. 57, no. 18 , 1897–1907 , doi: 10.1002/pola.29313.

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Abstract

The use of amphiphilic triblock copolymers bearing a reactive alkoxysilane middle block as polymeric stabilizers is reported in this work. A series of poly(ethylene glycol) methyl ether methacrylate‐b‐(3‐trimethoxysilyl)propyl methacrylate‐b‐benzyl methacrylate (PEGMA‐b‐MPS‐b‐BzMA) triblock copolymers were prepared by RAFT solution polymerization and polymerization‐induced self‐assembly (PISA), respectively, where the various block lengths and overall composition were varied. The copolymers prepared by solution polymerization were employed as oil‐in‐water stabilizers where upon application of a catalyst, the 3‐(trimethoxysilyl)propyl methacrylate (MPS) block at the droplet interface was crosslinked to yield capsule‐like structures. The effectiveness of interfacial crosslinking was validated by dynamic light scattering and electron microscopy. In situ self‐assembly by the PISA method resulted in spherical nanoparticles of controllable size that were readily crosslinked by addition of base, with significant enhancement of colloidal stability.

Item Type: Article
Authors/Creators:Teo, GH and Zetterlund, PB and Thickett, SC
Keywords: self-assembly, crosslinking, interfacial polymerization, alkoxysilanes
Journal or Publication Title: Journal of Polymer Science, Part A: Polymer Chemistry
Publisher: John Wiley & Sons
ISSN: 1099-0518
DOI / ID Number: 10.1002/pola.29313
Copyright Information:

Copyright 2018 Wiley Periodicals, Inc.

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