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Pure and Applied Chemistry

The Scientific Journal of IUPAC

Ed. by Burrows, Hugh / Weir, Ron / Stohner, Jürgen

12 Issues per year

IMPACT FACTOR 2013: 3.112
Rank 41 out of 148 in category Multidisciplinary Chemistry in the 2013 Thomson Reuters Journal Citation Report/Science Edition

SCImago Journal Rank (SJR): 1.172
Source Normalized Impact per Paper (SNIP): 1.106



Photoinduced bending and unbending behavior of liquid-crystalline gels and elastomers

Yanlei Yu1 / M. Nakano1 / T. Ikeda1

1Chemical Resources Laboratory, Tokyo Institute of Technology, R1-11, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan; Department of Materials Science, Fudan University, 220 Handan Road, Shanghai 200433, China

Citation Information: Pure and Applied Chemistry. Volume 76, Issue 7-8, Pages 1467–1477, ISSN (Online) 1365-3075, ISSN (Print) 0033-4545, DOI: 10.1351/pac200476071467, January 2009

Publication History

Published Online:

Liquid-crystalline gels and elastomers were prepared by polymerization of mixtures containing azobenzene monomers and cross linkers with azobenzene moieties. Oriented liquid-crystalline gels and elastomer films were found to undergo anisotropic bending and unbending behavior only along the rubbing direction, when exposed to alternate irradiation of unpolarized UV and visible light. In the case of polydomain liquid-crystalline elastomer films, the bending and unbending were induced exactly along the polarization direction of incident linearly polarized light. By altering the polarization direction of light, a single film could be bent repeatedly and precisely along any chosen direction.

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