Effect of acrylonitrile content of styrene‐ co ‐acrylonitrile (SAN) on morphology and electrooptical properties of polymer/liquid crystal composite films | Zendy

Kim B. K. | Zendy; Ok Y. S. | Zendy

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Effect of acrylonitrile content of styrene‐ co ‐acrylonitrile (SAN) on morphology and electrooptical properties of polymer/liquid crystal composite films

Author(s) -

Kim B. K.,

Ok Y. S.

Publication year - 1993

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1993.070491008

Subject(s) - acrylonitrile , styrene , copolymer , composite number , materials science , hildebrand solubility parameter , morphology (biology) , drop (telecommunication) , polymer , polymer chemistry , liquid crystal , crystal (programming language) , solubility , chemical engineering , composite material , chemistry , organic chemistry , telecommunications , optoelectronics , biology , computer science , engineering , genetics , programming language

Effects of copolymer composition on morphology and electrooptical properties of polymer/liquid crystal (LC) (40/60 w/w) composite films were studied with styrene‐ co ‐acrylonitrile (SAN) of varying acrylonitrile (AN) content (6.3–35 wt %) and a cyanobiphenyl‐type liquid crystal (E8). The dimension of the LC domain in the composite film decreased with increase of AN content of SAN up to 30 and increased at 35 wt %. The contact angle of the film with an LC drop showed a similar trend; however, its minimum was obtained at 24% AN. Threshold voltage ( V th ) and rise time (τ R ) increased, and decay time (τ D ) decreased with AN content up to 30%, and the tendency is reversed at 35%. The results were interpreted in terms of, possibly, a solubility parameter matching between SAN and LC. © 1993 John Wiley & Sons, Inc.

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