Skip to main content

Three-Dimensional Photoreorientation of Self-Organized Azobenzene Chromophores in Liquid Crystalline Polymer Films

  • M. Han (a1), S. Morino (a1) and K. Ichimura (a1)

Photo-induced reorientational behavior of films of a liquid crystalline polymer with azobenzene side chains was studied by means of UV-Vis absorption spectroscopy and Fourier transform infrared transmission and reflection-absorption spectroscopy. The incident directions of light for photoisomerization played a critical role in the photocontrol of out-of-plane (three-dimensional) orientation of the azobenzenes in films. Tilted directions of the azobenzene residues were evaluated by using polarized UV-Vis absorption spectra. Photoreoriented states of azobenzene chromophores including photodichroism and tilted alignment were enhanced by successive annealing of photoirradiated films at temperatures close to the glass transition temperature of the polymer.

Hide All
1Eich M. and Wendorff J. H., Makromol. Chem. Rapid Commun. 8, 467 (1987).
2Anderle K., Birenheide R., Werner M. J. A., and Wendorff J. H., Liq. Cryst. 9, 691 (1991)
3Ichimura K., Hayashi Y., Kawanishi Y, Seki T., Tamaki T., and Ishizuki N., Langmuir 9, 857 (1993).
4Natansohn A., Rochon P., PNzolet M., Audet P., Brown D., and To S., Macromolecules 27, 2580 (1994).
5Ichimura K., Y Suzuki, Seki T., Hosoki A., and Aoki K., Langmuir 4, 1214 (1988).
6Aoki K., Seki T., Suzuki Y, Tamaki T., Hosoki A., and Ichimura K., Langmuir 8, 1007 (1992).
7Kawai T., Umemura J., and Takenaka T., Langmuir 6, 672 (1990).
8Ichimura K., Suzuki Y, Seki T., Kawanishi Y., and Aoki K., Makromol. Chem. Rapid Commun. 10, 5 (1989).
9Sagiv J., Isr. J. Chem. 18, 346 (1979).
10Sagiv J., J. Am. Chem. Soc. 102, 92 (1980).
11Chollet P A., Messier J., and Rosilio C., J. Chem. Phys. 64, 1042 (1976).
12Rabolt J. F, Burns F. C., Schlotter N. E., and Swalen J. D., J. Chem. Phys. 78, 946 (1983).
13Umemura J., Tamaka T., Kawai T., and Takenaka T., J. Phys. Chem. 94, 62 (1990).
14Ichimura K., Morino S., and Akiyama H., Appl. Phys. Lett. 73, 921 (1998).
15Ichimura K., Han M., and Morino S., Chem. Lett. 85 (1999).
16Robin M. B. and Simpson W T., J. Chem. Phys. 36, 580 (1962).
17Uznaski P, Kryszewski M., and Thustrup E. W., Spectrochem. Acta 46A, 23 (1990)
18Allara D. L. and Swalen J. D., J. Phys. Chem. 86, 2700 (1982).
19Katayama N., Ozaki Y., Seki T., Tamaki T., and Iriyama K., Langmuir 10, 1898 (1994).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *


Full text views

Total number of HTML views: 0
Total number of PDF views: 1 *
Loading metrics...

Abstract views

Total abstract views: 22 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 23rd November 2017. This data will be updated every 24 hours.