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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2344
Title: Influence of different polyesters and their molecular weight on the textural and electrooptical behavior of polymer-dispersed liquid crystals
Authors: Kundu, Patit Paban
Verma G.
Raina K.K.
Published in: Journal of Applied Polymer Science
Abstract: The textural and electrooptical behavior of a nematic liquid crystal (LC) dispersed in a flexible and rigid polyester was studied. The dispersion of LC in the polymer matrix and light transmission through the polymer-dispersed liquid crystal (PDLC) is governed by the nature of the polymer, its molecular weight, and the applied voltage. It was observed that the transmission of light and the dispersion of LC maximizes their respective values at the minimum molecular weight irrespective of the nature of the polymer and at the maximum voltage. The reason is the predominance of chain alignment over entanglement at the minimum molecular weight. As molecular weight increases, the transmission of light as well as the dispersion of LC in the polymer may increase or decrease depending on the predominance of chain entanglement or chain alignment. The alignment of LC droplets in the direction of the applied voltage is increased by an increase in the applied voltage, causing enhancement of the light transmission. © 2002 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 87.
Citation: Journal of Applied Polymer Science (2003), 87(2): 284-289
URI: https://doi.org/10.1002/app.11373
http://repository.iitr.ac.in/handle/123456789/2344
Issue Date: 2003
Publisher: John Wiley and Sons Inc.
Keywords: Liquid crystalline
Polyesters
Polymers (LCP)
Transparency
ISSN: 218995
Author Scopus IDs: 35475516300
57196602770
7004887027
Author Affiliations: Kundu, P.P., Department of Chemical Technology, St. Longowal Inst. of Eng./Technol., Longowal, Punjab 148106, India
Verma, G., Department of Chemical Technology, St. Longowal Inst. of Eng./Technol., Longowal, Punjab 148106, India
Raina, K.K., Liquid Crystal Laboratory, School of Physics and Mat. Sciences, Thapar Inst. of Eng. and Technology, Patiala, Punjab, India
Corresponding Author: Kundu, P.P.; Department of Chemical Technology, St. Longowal Inst. of Eng./Technol., Longowal, Punjab 148106, India; email: ppk923@yahoo.com
Appears in Collections:Journal Publications [CH]

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