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  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Internal Cavity Control of Tubule Transformed from Surface Grafted Sheet Polymer

등록일
2012년 2월 16일 15시 37분 16초
접수번호
1073
발표코드
PHYS.O-3 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 10시 : 20분
발표형식
구두발표
발표분야
물리화학 - General Oral Presentation
저자 및
공동저자
한민우, 심은지
연세대학교 화학과, Korea
We investigate internal cavity controlled tubular formation through simple modification of tether coils that are grafted on the surface of 2D polymer sheet. Dissipative particle dynamics simulations show that coarse-grained 2D sheets transform to various cylindrical structures including tubular and filled scrolls in the presence of broken volume and chemical symmetries of tether coils: volume (chemical) asymmetry arises when coils on one side have different number of beads (solvent affinity) from those on the other side. It is clear from a phase diagram that the scroll formation is governed by the balance between hydrophobicity and entropy of coils. The density profiles show that a wide range of interior cavity diameter can be obtained by employing volume asymmetry on coils with weak chemical asymmetry. Also we found that the sheet asymmetry arises from discrepancy in graft configuration on the two surfaces and results in spontaneous scroll formation. We believe this work provides a framework for further research of surface grafted sheet polymers.

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