CORRELATION BETWEEN CHAIN CONFORMATIONS AND OPTICAL ANISOTROPY OF THIN-FILMS OF AN ORGANO-SOLUBLE POLYIMIDE

Authors
LI BZ HE TB DING MX
Citation
Bz. Li et al., CORRELATION BETWEEN CHAIN CONFORMATIONS AND OPTICAL ANISOTROPY OF THIN-FILMS OF AN ORGANO-SOLUBLE POLYIMIDE, Polymer, 38(26), 1997, pp. 6413-6416
Citations number
13
Categorie Soggetti
Polymer Sciences
Journal title
Polymer → ACNP
ISSN journal
00323861
Volume
38
Issue
26
Year of publication
1997
Pages
6413 - 6416
Database
ISI
SICI code
0032-3861(1997)38:26<6413:CBCCAO>2.0.ZU;2-G
Abstract
An organo-soluble polyimide was successfully synthesized by two step p olycondensation accompanied with chemical imidization. Optical anisotr opy of thin films was detected by a prism-coupler technique. The resul ts showed that the optical anisotropic properties of thin films prepar ed from solutions in different solvents depend on the solution propert ies. It is concluded that the more expanded the chain conformation in solution, the larger the negative birefringence of thin films. (C) 199 7 Elsevier Science Ltd.