Grafting on polysilanes using transfer radical polymerisation

dos Santos, C.G. and Parker, J. and Jones, R.G. and Holder, S.J. (2002) Grafting on polysilanes using transfer radical polymerisation. Polymer International, 51 (10). pp. 1107-1110. ISSN 0959-8103. (The full text of this publication is not available from this repository)

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Abstract

Atom transfer radical polymerisation (ATRP) was used in an attempt to prepare a graft polymer based on poly(methylphenylsilane) (PMPS). A partially bromomethylated PMPS was subjected to ATRP conditions in order to grow poly(methyl methacrylate) (PMMA) grafts onto that backbone. Following the grafting reaction, a substantial increase in molecular weight was observed by size exclusion chromatography, analysis using refractive index detection. However, a bimodal product molecular weight distribution was observed using a UV detector set at wavelengths at which only the PMPS backbone can be detected. The lower molecular weight fraction was identified as homopolymeric PMPS although it appears to include some material with short grafts, while the higher molecular weight fraction corresponds to PMPS with long grafts. These observations are interpreted as the formation of a substantial amount of PMMA that is not grafted onto PMPS through a radical process initiated independently of the ATRP. However, since MMA is barely susceptible to thermal polymerisation, this is not easily rationalised. (C) 2002 Society of Chemical Industry.

Item Type: Article
Additional information: 13 JOHN WILEY & SONS LTD
Uncontrolled keywords: ATRP; grafting; poly(methylphenylsilane); poly(methyl methacrylate)
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Simon Holder
Date Deposited: 08 Aug 2008 14:26
Last Modified: 14 Jan 2010 14:07
Resource URI: http://kar.kent.ac.uk/id/eprint/2539 (The current URI for this page, for reference purposes)
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