Journal
NPG ASIA MATERIALS
Volume 4, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/am.2012.54
Keywords
conformation change; hexagonal close packing structure; multi-bilayer structure; peptide-mimic poly(n-alkyl isocyanate); reversible order-order transition; selective solvent annealing; self-assembly
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Funding
- National Research Foundation of Korea (Doyak project) [2011-0028678]
- National Research Foundation of Korea (Center for Electro-Photo Behaviors in Advanced Molecular Systems) [2010-0001784]
- Program for Integrated Molecular System of GIST
- Ministry of Education, Science and Technology (MEST) (BK21 Program)
- Ministry of Education, Science and Technology (MEST) (World Class University Program) [R31-2008-000-10059-0, R31-20008-000-10026-0]
- National Research Foundation of Korea [2011-0028678] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We report for the first time the conformational and structural details of peptide-mimic poly(n-hexyl isocyanate) (PHIC). PHIC is a representative poly(n-alkyl isocyanate)s, which have received significant attention because of their unique stiff chain characteristics and potential applications in various fields. A well-ordered hexagonal close packing structure of PHIC with 8(3) helical conformation was clearly observed in the nanoscale thin films that were selectively annealed with carbon disulfide (CS2). A well-ordered multi-bilayer structure of the polymer with beta-sheet conformation was also clearly formed in the films that were selectively annealed with toluene. In addition, a fully reversible transformation between these two self-assembled structures was demonstrated by consecutive annealings with CS2 and toluene. NPG Asia Materials (2012) 4, e29; doi:10.1038/am.2012.54; published online 26 October 2012
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