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Home  >  Journal list  >  Polymer Journal  >  Vol.37  No.10 (2005)  >  pp.754-758

Polymer Journal
<<Previous article Vol.37  No.10 (2005)   pp.754 - 758 Next article>>

Graft Photocopolymerization of Styrene with 9-Anthrylmethyl-Substituted Poly(methyl methacrylate)

Kenta Tanaka1), Hiroaki Uchida2), Tetsutaro Igarashi2) and Tadamitsu Sakurai2)
1) High-Tech Research Center, Kanagawa University
2) Department of Applied Chemistry, Faculty of Engineering, Kanagawa University


ABSTRACT:  An investigation was undertaken to achieve the graft copolymerization of styrene (St) in the presence of the 9-anthrylmethyl methacrylate/methyl methacrylate copolymer designed as a macromolecular photoinitiator. UV and 1H NMR spectral analyses suggested that about 64% of the anthryl chromophore is rapidly consumed by the intramolecular cycloaddition of this chromophore. However, no additional cycloaddition occurred owing to the greatly lowered conformational mobility of polymer side chains. As a result, the homolytic CH2O–C(=O) bond cleavage in the anthrylmethyloxycarbonyl moiety was induced to form a macroradical which initiates the polymerization of St. While the St homopolymer was produced along with the graft copolymer in our system, these two polymers were readily separated by the use of a Soxhlet extractor.


Keyword:
Photopolymerization/ Graft Polymerization/ Radical Polymerization/ Cycloaddition

Published online: October 08, 2005
© Copyright, 2005 by The Society of Polymer Science, Japan

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