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논문 기본 정보

자료유형
학술저널
저자정보
Ko, Min-Jae (Hyperstructured Organic Materials Research Center and School of Materials Science Engineering, Seoul National University) Kim, Seung-Hyun (Hyperstructured Organic Materials Research Center and School of Materials Science Engineering, Seoul National University) Jo, Won-Ho (Hyperstructured Organic Materials Research Center and School of Materials Science Engineering, Seoul National University)
저널정보
한국섬유공학회 Fibers and Polymers Fibers and polymers 제4권 제1호
발행연도
2003.1
수록면
15 - 19 (5page)

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The self-assembly of asymmetric ABC triblock copolymers in the ordered structure is investigated using an isothermal-isobaric molecular dynamics simulation. Unlike symmetric A BC triblock copolymers, more fascinating mophologies are observed in asymmetric ones because of a larger difference of incompatibility between the components. Various modes of self-assembly in assymmetric ABC triblock copolymers are also observed depending on the block composition. When the composition of block A Is changed from 0.125: to 0.25 at the same $f_B$ : 0.25, the morphological transition from the “cylinder in cylinder” to “cylinders at cylinder” structure is observed in the simulation. In the case of ABC triblocks with $f_B$=0.5, a lamellar-type structure is changed to a cylinder-type structure with increasing the length of block A. When the midblock length increases further to $f_B$=0.625, the “spheres on cylinder” structure is observed in both the $A_{10}$$B_{50}$$C_{20}$ and $A_{20}$$B_{50}$$C_{10}$ triblocks. From these results, the phase diagram of ABC triblock copolymers can be constructed.

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