Photoinduced Optical Anisotropy in Modified Polyimides

Author

Hamciuc, E. ; Sava, I. ; Bruma, M. ; Kopnick, T. ; Stumpe, J.

Author_Institution

Inst. of Macromolecular Chem.

Volume

2

fYear

2006

fDate

27-29 Sept. 2006

Firstpage

283

Lastpage

286

Abstract

New poly(amide-imide)s containing cinnamoyl and azobenzene units have been synthesized by direct polycondensation reaction of two diacids having preformed cinnamoyl units and a diamine incorporating azobenzene groups, using triphenyl phosphite and pyridine as condensing agents. The polymers were readily soluble in various organic solvents and gave thin films by casting from such solutions. They showed good thermal stability. A highly anisotropic optical film was fabricated by irradiation with linearly polarized light and its stability was studied

Keywords

anisotropic media; optical films; optical polymers; radiation effects; azobenzene groups; azobenzene units; cinnamoyl units; condensing agents; diacids having; diamine; direct polycondensation reaction; irradiation; modified polyimides; optical film; organic solvents; photoinduced optical anisotropy; polyamides; polymers; pyridine; thermal stability; thin films; triphenyl phosphite; Anisotropic magnetoresistance; Casting; Geometrical optics; Optical films; Optical polarization; Optical polymers; Polyimides; Polymer films; Solvents; Thermal stability; azobenzene; cinnamoyl; optical anisotropy; poly(amide-imide) s; thermal amplification;

fLanguage

English

Publisher

ieee

Conference_Titel

International Semiconductor Conference, 2006

Conference_Location

Sinaia

Print_ISBN

1-4244-0109-7

Type

conf

DOI

10.1109/SMICND.2006.283998

Filename

4063226