화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관)
권호 34권 2호
발표분야 액정/LCD 재료
제목 Spatio-orientationally Organized Polymer Structures Obtained on pattern-forming States of Liquid Crystals: Mprphology, Phase Separation, and Potential Applications
초록 We present a variety of spatio-orientationally organized polymer structures templated on pattern-forming states of LCs. This clearly demonstrates the feasibility and flexibility of templating both orientational and positional order of host LCs into polymer network. Since we believe that learning how to create macroscopic organization of functional materials, and the elucidation of rules mediating their patterned phase separation, will offer a fascinating prospect for future research, we investigated possible driving forces behind this templating effect. The Patterned phase separation derives from the concept of director gradient templating, whereby monomer’s/polymer’s spatial phase separation is driven by a competition between reduction in elastic energy and electromagnetic potential energy when monomer or polymer aggregate replaces liquid crystal in more (or less) distorted regions of the molecular director, and a consequent decrease in the entropy of mixing of the two species.
저자 Shin-Woong Kang1, S. Sprunt2, L. C. Chien3
소속 1전북대, 2Kent State Univ., 3Physics
키워드 Liquic crystal; Reactive monomer; Polymerization; Phase separation; Spatial Templating
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