Microgel stars via Reversible Addition Fragmentation Chain Transfer (RAFT) polymerisation — a facile route to macroporous membranes, honeycomb patterned thin films and inverse opal substrates

Lord, Helen T., Quinn, John F., Angus, Simon D., Whittaker, Michael R., Stenzel, Martina H. and Davis, Thomas P. (2003) Microgel stars via Reversible Addition Fragmentation Chain Transfer (RAFT) polymerisation — a facile route to macroporous membranes, honeycomb patterned thin films and inverse opal substrates. Journal of Materials Chemistry, 13 11: 2819-2824. doi:10.1039/b304208c


Author Lord, Helen T.
Quinn, John F.
Angus, Simon D.
Whittaker, Michael R.
Stenzel, Martina H.
Davis, Thomas P.
Title Microgel stars via Reversible Addition Fragmentation Chain Transfer (RAFT) polymerisation — a facile route to macroporous membranes, honeycomb patterned thin films and inverse opal substrates
Formatted title
Microgel stars via Reversible Addition Fragmentation Chain Transfer (RAFT) polymerisation — A facile route to macroporous membranes, honeycomb patterned thin films and inverse opal substrates
Journal name Journal of Materials Chemistry   Check publisher's open access policy
ISSN 1364-5501
0959-9428
Publication date 2003-11-01
Sub-type Article (original research)
DOI 10.1039/b304208c
Open Access Status Not Open Access
Volume 13
Issue 11
Start page 2819
End page 2824
Total pages 6
Place of publication Cambridge, U.K.
Publisher Royal Society of Chemistry
Language eng
Subject 0303 Macromolecular and Materials Chemistry
Formatted abstract
Arm first microgel polymers were successfully synthesised utilising Reversible Addition Fragmentation Chain Transfer (RAFT) polymerisation techniques. A functional prearm linear AB block copolymer intermediate, (polystyrene)-block-(polydivinylbenzene), was prepared via RAFT by simple one pot chain extension and arm coupling of a preprepared polystyrene macromer. The arms are coupled together via the residual unsaturation present in the polydivinylbenzene block by free radical means to form core-crosslinked microgels. It was found that the arm coupling process could be described by invoking a two-stage coupling system. The initial induction period consists of the formation of largely two-arm (on average) species. This is followed by a latter growth period, where true core-crosslinked microgels are formed consisting of polyarm clusters having 16 arms (on average) per cluster. These microgel materials were cast under specific conditions to form porous polymer films of varying quality. Image analysis of these films demonstrated the importance of the linear component : microgel component ratio in determining both a uniform pore size and the formation of a hexagonal close packed array of pores.
© The Royal Society of Chemistry 2003
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Thu, 12 Feb 2009, 00:11:18 EST by Laura McTaggart on behalf of Aust Institute for Bioengineering & Nanotechnology