X-ray investigations of Langmuir-Blodgett multilayer films of side-chain liquid crystal copolymers
作者:
R. Geer,
S. Qadri,
R. Shashidhar,
A.F. Thibodeaux,
R.S. Duran,
期刊:
Liquid Crystals
(Taylor Available online 1994)
卷期:
Volume 16,
issue 5
页码: 869-875
ISSN:0267-8292
年代: 1994
DOI:10.1080/02678299408027857
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
X-ray reflectivity studies on Langmuir-Blodgett multilayer films of side-chain liquid crystal polymers are reported. The films have a high degree of lamellar order. The layer periodicity is independent of the type of monolayer deposition, implying a reorientation of the side group mesogens following the deposition process. X-ray reflectivity from thin films displays subsidiary maxima permitting a quantitative measure of the change in side-chain density between multilayer and monolayer. A unit cell density profile is calculated for thick films assuming a symmetric unit cell.
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