| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Synthesis and Characterization of Diblock Copolypeptides Revealing Selective Self-Assembly Behaviors in Nano-Thin Films |
| 초록 |
A series of well-defined diblock copolypeptides with various compositions was synthesized, Poly(γ-benzyl-L-glutamate)-b-poly(ε-benzyloxycarbonyl-L-lysine) (PBLGm-b-PBCLn), through the living ring-opening polymerizations of γ-benzyl-L-glutamate and ε-benzyloxycarbonyl-L-lysine N-carboxyanhydrides with nickel catalyst system. The obtained polypeptides are easily processable and thermally stable up to around 150℃. Their morphological structures and orientation details in nano scale thin films were investigated by carrying out in situ GIXS measurements during heating and subsequent cooling and quantitative GIXS data analysis. The diblock copolypeptides in nano-thin films were found to have the α-helical conformation and to form fibrils. The fibrils are present in the thin films of the copolypeptides; interestingly, the films are composed of two different rotationally isomeric hexagonally (HEX) packed cylinder structures that are preferentially oriented in the film plane. |
| 저자 |
송성진1, 안병철1, 권원상1, 김경태1, 김미희1, 고용기1, 정성민1, 권경호1, 김영용1, 김종현1, 위동우1, 이진석1, 김창섭1, 이종찬1, 김용진1, 이호열1, 김희수2, 이문호1
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| 소속 |
1포항공과대, 2동국대 |
| 키워드 |
Synthesis; Peptide; Self-assembly; GIXS; Nano-thin film; HEX cylinder
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| E-Mail |
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