期刊
MACROMOLECULES
卷 45, 期 9, 页码 3677-3686出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma300555v
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Grants-in-Aid for Scientific Research [23750261, 22350096, 23655207] Funding Source: KAKEN
Well-defined clickable poly(n-hexyl isocyanate) (PHIC) with an azido or alkyne end group as rod-like building block has been prepared by the living coordination polymerization using organotitanium catalysts. The obtained clickable PHIC was subjected to the Cu-catalyzed azide/alkyne cycloaddition for the synthesis of well-defined macromolecular architectures based on PHIC as a rod polymer, e.g., PHIC-b-poly(N-isopropyl acrylamide) as rod-coil block copolymer and 4-arm star PHIC as a rod star polymer. Additionally, PHIC-b-poly(L-lactide) and PHIC-b-poly(epsilon-caprolactone) as novel rod coil block copolymers were respectively synthesized by the ring-opening polymerizations of L-lactide and epsilon-caprolactone initiated from hydroxyl end-functionalized PHIC. All products were characterized by H-1 NMR spectroscopy, MALDI-TOF mass spectrometry, and size exclusion chromatography equipped with multiangle laser light scattering and viscosity detectors.
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