Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 137, Issue 45, Pages -Publisher
WILEY
DOI: 10.1002/app.49408
Keywords
functionalization of polymers; liquid crystals; self-assembly
Categories
Funding
- Japan Society for the Promotion of Science [17K05985]
- Grants-in-Aid for Scientific Research [17K05985] Funding Source: KAKEN
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We describe a four-step process [solvent vapor treatment, liquid crystal formation, magnetic orientation, and crystallization (VLMC)] for producing oriented helical polyisocyanides with crystal-like structure. We synthesized a series of ortho-alkyl groups substituted with poly(phenyl isocyanide), and characterized the polymer structure using polarizing optical microscopy, scanning electron microscopy, and X-ray diffraction. The results demonstrated that the polymer has a crystal-like structure and the sample forms cholesteric liquid crystal phase. Vapor treatment of polymer films under a magnetic field produced an aligned fiber structure at the submicron level and demonstrated magnetic alignment and formation of a solvent vapor-induced polymer crystal. These results demonstrated formation of a polymer with a one-handed helical structure, formation of a liquid crystal and polymer crystal via solvent vapor treatment, and magnetic alignment of a textile-like polymer crystal domain.
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