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6613724 
Journal Article 
Reversible addition-fragmentation chain transfer polymerization: End group modification for functionalized polymers and chain transfer agent recovery 
Perrier, S; Takolpuckdee, P; Mars, CA; , 
2005 
1 
Macromolecules
ISSN: 0024-9297
EISSN: 1520-5835 
AMER CHEMICAL SOC 
WASHINGTON 
38 
6 
2033-2036 
English 
WOS:000227760100004 
A simple reaction which leads to the full removal of thiocarbonyl, the thio end group from the polymeric chains, and the recovery of the chain transfer agent was discussed. Methyl methacrylate was mixed with S- methoxycarbonylphenylmethyl dithiobenzoate (MCPDB) and α, α′-azobis(isobutyronitrile) (AIBN) and the solution was heated. The polymer was isolated by precipitation in cold hexane to yield a powder with the characteristic pink color of polymer obtained by reversible addition- fragmentation chain transfer (RAFT) process. The H NMR spectroscopy of recovered polymer shows the characteristic spectrum of PMMA in CdCl3.