Poly (dimethylaminoethyl methacrylate) grafted natural rubber from seeded emulsion polymerization

Oliveira, Pedro C., Guimaraes, A., Cavaille, Jean-Yves, Chazeau, Laurent, Gilbert, Robert G. and Santos, Amilton M. (2005) Poly (dimethylaminoethyl methacrylate) grafted natural rubber from seeded emulsion polymerization. Polymer, 46 4: 1105-1111. doi:10.1016/j.polymer.2004.11.048


Author Oliveira, Pedro C.
Guimaraes, A.
Cavaille, Jean-Yves
Chazeau, Laurent
Gilbert, Robert G.
Santos, Amilton M.
Title Poly (dimethylaminoethyl methacrylate) grafted natural rubber from seeded emulsion polymerization
Journal name Polymer   Check publisher's open access policy
ISSN 0032-3861
Publication date 2005-01-01
Sub-type Article (original research)
DOI 10.1016/j.polymer.2004.11.048
Volume 46
Issue 4
Start page 1105
End page 1111
Total pages 7
Place of publication Oxford
Publisher Elsevier Sci Ltd
Language eng
Subject 0301 Analytical Chemistry
Abstract The grafting efficiency of dimethylaminoethylmethacrylate (DMAEMA) on to natural rubber (NR) has been studied. Grafting was by 'topology-controlled' emulsion polymerization, whereby polymerization is initiated by a redox couple where one component (tetraethylene pentamine) is hydrophilic and the other (cumene hydroperoxide) is hydrophobic. This should promote grafting at the interface between hydrophobic natural rubber particles and the hydrophilic DMAEMA. The effects of different amounts of monomer were examined, with NMR to obtain the percent branching, transmission electron microscopy to obtain information on morphology, gel fraction measurement and dynamic mechanical analysis to obtain information on mechanical properties. Although there will be significant amounts of ungrafted polyDMAEMA present, there is good evidence for the formation of graft copolymers of NR with core-shell morphology, and significant amounts of grafting, at high concentrations of monomer. (C) 2004 Elsevier Ltd. All rights reserved.
Keyword Polymer Science
seeded polymerization emulsion polymerization
natural rubber
graft copolymer
Copolymers
Colloids
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Centre for Nutrition and Food Sciences Publications
 
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Created: Thu, 20 Sep 2007, 03:07:51 EST