DEUTERIUM NMR AND MORPHOLOGY STUDY OF POLYMER-DISPERSED LIQUID-CRYSTAL BRAGG GRATINGS

Authors
IANNACCHIONE GS FINOTELLO D NATARAJAN LV SUTHERLAND RL TONDIGLIA VP BUNNING TJ ADAMS WW
Citation
Gs. Iannacchione et al., DEUTERIUM NMR AND MORPHOLOGY STUDY OF POLYMER-DISPERSED LIQUID-CRYSTAL BRAGG GRATINGS, Europhysics letters, 36(6), 1996, pp. 425-430
Citations number
25
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
36
Issue
6
Year of publication
1996
Pages
425 - 430
Database
ISI
SICI code
0295-5075(1996)36:6<425:DNAMSO>2.0.ZU;2-F
Abstract
The orientational order in polymer-dispersed liquid crystals on hologr aphically written volume Bragg gratings is studied using deuterium NMR . Unique spectral patterns indicate that a homeotropic liquid-crystal director configuration at the polymer interface is retained despite th e small pore size (< 100nm). This structure coexists with liquid cryst als in trapped defect structures of dimension comparable to the pore s ize.