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Morphology control in polymerised high internal phase emulsion templated via macro-RAFT agent composition: visualizing surface chemistry

Khodabandeh, A, Arrua, RD, Coad, BR, Rodemann, T ORCID: 0000-0003-2356-1153, Ohigashi, T, Kosugi, N, Thickett, SC ORCID: 0000-0002-8168-3856 and Hilder, EF 2018 , 'Morphology control in polymerised high internal phase emulsion templated via macro-RAFT agent composition: visualizing surface chemistry' , Polymer Chemistry, vol. 9 , pp. 213-220 , doi: 10.1039/c7py01770g.

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Abstract

A series of polymerized high internal phase emulsion (polyHIPE) materials have been prepared by using a water in oil emulsion stabilized by a macro-RAFT agent, 2-(butylthiocarbonothioylthio)-2-poly(styrene)-b-poly(acrylic acid), acting as a polymeric surfactant. The pore structures of the formed polyHIPEs were closed. By removing the RAFT-endgroup of the amphiphilic macro-RAFT agent, the obtained polyHIPEs possessed an open structure with voids. The effect of the RAFT-endgroup of the amphiphilic macro-RAFT agent on the surface chemistry of the polyHIPEs is discussed. The obtained polyHIPEs via this surfactant-assisted functionalization strategies were characterized by FTIR spectroscopy, FTIR mapping, SEM, SEM-EDX, TEM, XPS as well as synchrotron-based scanning transmission X-ray microscopy (STXM). The latter technique revealed the surface chemistry of the obtained polyHIPEs and macro-RAFT agent multicomponents with a surface spatial resolution of the order of 30–100 nm.

Item Type: Article
Authors/Creators:Khodabandeh, A and Arrua, RD and Coad, BR and Rodemann, T and Ohigashi, T and Kosugi, N and Thickett, SC and Hilder, EF
Keywords: polyHIPE, surface functionalization, STXM, RAFT, porous monolith, polymerization
Journal or Publication Title: Polymer Chemistry
Publisher: Royal Society of Chemistry
ISSN: 1759-9954
DOI / ID Number: 10.1039/c7py01770g
Copyright Information:

Copyright 2018 The Royal Society of Chemistry

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