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Home  >  Journal list  >  Polymer Journal  >  Vol.22  No.8 (1990)  >  pp.705-718

Polymer Journal
<<Previous article Vol.22  No.8 (1990)   pp.705 - 718 Next article>>

Synthesis and Polymerization of Mono-p-alkoxy-Substituted Triphenylmethyl Methacrylate

Yusuke Kawakami1), Yutaka Sakai1) and Akihiko Okada1)
1) Department of Synthetic Chemistry, School of Engineering, Nagoya University

ABSTRACT:  Triphenylmethyl methacrylates having alkoxy groups, or mesogenic groups with alkyleneoxy spacer, as p-substituents of one of the phenyl groups were synthesized. Although the monomers and polymers were considerably unstable against hydrolysis, polymers could be obtained by radical polymerization by careful handling of the compounds. Anionic initiators, such as butylithium, usually failed to give high polymers. This seems to be because of the difficulty in obtaining completely dry monomers for anionic polymerization. Triad isotacticity of the polymers was evaluated after converting the polymers into poly(methyl methacrylate)s. Polymers obtained not only by anionic polymerization but also by radical polymerization showed considerably high isotacticity. The effects of the substituents on the isotacticity of the polymers are described.


Keyword:
Triphenylmethyl Metacrylate/ Radical Polymerization/ Anionic Polymerization/ Tacticity/ Poly(methyl methacrylate)/ Mesogen

Published online: April 06, 2005
© Copyright, 2005 by The Society of Polymer Science, Japan

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