Control of Polymer Structures in Phase-Separated Liquid Crystal-Polymer Composite Systems

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概要

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• The formation of different structures in phase-separated composite films (PSCOFs) from formulations of liquid crystals and photocurable monomers has been investigated using polarizing optical and scanning electron microscopies. Two processes, spatially nonuniform polymerization and diffusion of small molecules, play important roles in determining a specific PSCOF polymer structure. The variations in UV irradiation intensity and temperature, at which phase separation is carried out, strongly influence these two processes and can change the resultant structure from a homogeneous PSCOF bilayer structure to a heterogeneous polymer dispersed liquid crystal (PDLC) structure. A variation in cell thickness changes the distance through which small molecules have to diffuse during phase separation and, thus, affects the structure obtained in thick and thin cells.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2005-05-15

著者

• Park Jung

  School Of Electrical Engineering & Computer Science Seoul National University

• Wang Qingbing

  The Department Of Physics Kent State University

• SRINIVASARAO Mohan

  School of Polymer, Textile and Fiber Engineering, and School of Chemistry and Biochemistry, Georgia

• Qiu Liou

  Liquid Crystal Institute Kent State University

• Kumar Satyendra

  The Department Of Physics Kent State University

• Qiu Liou

  Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA

• Park Jung

  School of Polymer, Textile and Fiber Engineering, and School of Chemistry and Biochemistry, Georgia Institute of Technology, GA 30332, USA

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