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  • 08월 28일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Control of the micellar structures of the block copolymers using solvent selectivity

등록일
2008년 8월 12일 10시 55분 18초
접수번호
1143
발표코드
목3F1분념 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 13시 : 50분
발표형식
분과기념
발표분야
고분자화학 - New Design Concept and Frontier Technology of Liquid Crystals
저자 및
공동저자
박수영
경북대학교 고분자공학과, Korea
The effects of the solvent selectivity on the micellar and ordered structures of diblock copolymer were studied. The diblock copolymers studied were PS-b-P4VP, PS-b-PI, and PS-b-SGLCP (side group liquid crystal polymer). The solvent selectivity was controlled by solvent mixtures for PS-b-P4VP, PS-b-PI as well as heating of nematic liquid crystal (5cb) for PS-b- SGLCP. The stable micelle (in the neutral solvent) was studied for PS-b-PI where PI in the core was cross-linked. Solvent mixtures covered a wide range of solvent selectivity from one-block selective, to neutral, and to the-other-block selective and the nematic LC can undergo a first-order transition at the solution’s isotropization point, TNI unlike conventional solvents. We could control a variety of meso-structures and the liquid crystal properties at the step-wise. We believe that these results can be applied to photonic crystals, self-assembled nano-patterning, and functional nanoparticles in which the structural control is most important.

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