Optical behavior of epoxy -isocyanate based azo compounds

SÁIZ LUCIANA; OYANGUREN PATRICIA; GALANTE M. JOSÉ

Los Cocos, Cordoba, Argentina

Simposio; V Argentine-Chilean Polymer Symposium"-"VIII Argentine Polymer Symposium" - "IX Chilean Symposium of Polymer Chemistry and Physical-Chemistry"; 2009

Azoaromatic polymers have been widely investigated due to the reversible cis-trans photoisomerization of the azo group. These polymers are versatile materials for constructing a variety of optical devices. (Neves et al, 2003; Fernandez et al, 2009)Recent studies on photoorientation processes in amorphous polymers have addressed the role of Tg and polymer structural effects, including the main chain rigidity, the nature of the connection of the chromophore to a rigid, semirigid or a flexible main chain, the free volume or a combinations of these. (Fernandez et al, 2009, Sekkat et al, 2002)Based on that, the aim of this work is to synthesize and characterize polymers with diverse chemical structure containing azo groups covalently linked that could exhibit optical anisotropy when are excited with polarized laser light.