ABSTRACT
Taras Shevchenko National University of Kyiv, Volodymyrs’ka str., 64, 01033 Kyiv, Ukraine, E-mail: oksananadtoka@ukr.net
Abstract ................................................................................................. 179 17.1 Introduction ................................................................................ 180 17.2 Experimental Part ....................................................................... 181 17.3 Result and Discussions .............................................................. 185 17.4 Conclusions ................................................................................ 189 Keywords .............................................................................................. 189 References ............................................................................................. 190
ABSTRACT
Polymers based on the polymethacrylic acid with azobenzene-containing side-chains have been obtained and investigation of their orientation ability has been carried out. For this purpose the method of azopolymer synthesis by polymer analogues reaction of carboxylic groups of polymethacrylic acid with hydroxyazobenzenes has been proposed. In addition to functional carboxylic and photosensitive azobenzene groups the alkyl
moieties of different length were involved into polymeric side chain. It was shown that “azobenzene-containing” polymers have ability to produce liquid crystal photoalignment. Exposed to actinic UV light photosensitive azobenzene fragments undergo orientation due to trans-cis isomerization. Liquid crystal (LC) covered on such polymer film can be oriented.
