THE EFFECT OF FLEXIBLE CHAIN FRAGMENTS ON ELECTROOPTICAL CHARACTERISTICS OF MESOGENIC CHAIN MOLECULES IN SOLUTION

Authors
TSVETKOV NV ZUEV VV DIDENKO SA TSVETKOV VN
Citation
Nv. Tsvetkov et al., THE EFFECT OF FLEXIBLE CHAIN FRAGMENTS ON ELECTROOPTICAL CHARACTERISTICS OF MESOGENIC CHAIN MOLECULES IN SOLUTION, Vysokomolekularnye soedinenia. Seria A, 37(8), 1995, pp. 1265-1271
Citations number
23
Categorie Soggetti
Polymer Sciences
Journal title
Vysokomolekularnye soedinenia. Seria A → ACNP
ISSN journal
05075475
Volume
37
Issue
8
Year of publication
1995
Pages
1265 - 1271
Database
ISI
SICI code
0507-5475(1995)37:8<1265:TEOFCF>2.0.ZU;2-S
Abstract
Electrooptical properties of 4,4'-bis(cyanobiphenyl)oxyalkanes in diox ane and benzene were studied using nonequilibrium electrical birefring ence. The dependence of molar Kerr constant on the length of oxyalkane chain was found to be nonmonotonic. This pattern was explained by the odd-even effect on intramolecular orientational polar and anisotropic order. Effects of equilibrium and kinetic flexibility of alkylene cha in on the magnitude and sign of the observed birefringence and on the extent of correlation in orientations of mesogenic fragments of the mo lecular chain in electrical field were discussed.