Polymer-stabilized liquid crystals system based on liquid crystalline cellulose derivatives

Piotr Wojciechowski; Marcin Kozanecki; Lidia Okrasa; W. Jozwiak

doi:10.1117/12.385712

12 May 2000 Polymer-stabilized liquid crystals system based on liquid crystalline cellulose derivatives

Piotr Wojciechowski, Marcin Kozanecki, Lidia Okrasa, W. Jozwiak

Proceedings Volume 4147, Liquid Crystals: Chemistry, Physics, and Applications; (2000) https://doi.org/10.1117/12.385712
Event: XIII International Conference on Liquid Crystals: Chemistry, Physics, and Applications, 1999, Krynica Zdroj, Poland

Abstract

The microstructure of the polymer composite based on the LC- cellulose derivative and poly(acrylonitrile) was investigated. The polymer composite was obtained by photopolymerization of the mechanically oriented (shearing) lyotropic LC-solution of the (2-hydroxypropyl)cellulose (HPC) in the acrylonitrile (AN). The use of multiple techniques: dielectric, thermogravimetric, mass spectroscopies, and thermooptical analysis enabled to overcome resolution problem related to behavior of the non- mesogenic polymer network of poly(acrylonitrile) in the mesogenic environment of the HPC. The results of the investigation of the composite microstructure show that the polymer composite is composed of two subsystems: mesogenic system of cellulose derivative and oriented fibril-like polymer network which is formed by non-mesogenic poly(AN). The polymer network of poly(AN) influences the optical anisotropy relaxation of the mesogenic HPC in the composite.

Citation Download Citation

Piotr Wojciechowski, Marcin Kozanecki, Lidia Okrasa, and W. Jozwiak "Polymer-stabilized liquid crystals system based on liquid crystalline cellulose derivatives", Proc. SPIE 4147, Liquid Crystals: Chemistry, Physics, and Applications, (12 May 2000); https://doi.org/10.1117/12.385712

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