| 초록 |
The self-assembly of rod-coil block copolymers induced a lot of interest due to their various phase behavior and potential for use in various applications. Especially rod-coil molecules based on poly (n-hexyl isocyanate) (PHIC) have been reported to exhibit various morphologies according to different fraction of rod block of PHIC. Among the establishment of block copolymer, living anionic polymerization technique is extremely useful in achieving controlled polymer architecture with controlled molecular weight, narrow molecular weight distribution and well-defined structures. In this study, the coil-rod block copolymers, P(2VP-b-HIC)s, were synthesized with quantitative yields and controlled molecular weights via living anionic polymerization in THF at combination of -78oc and -98oc using K-DPM (Potassium Diphenylmethane) as an initiator in the presence of NaBPh4 as a common ion salts to prevent side reactions. Characterization of the obtained block copolymer by SEC-LS, NMR spectroscopy, and DSC demonstrated that well-defined coil-rod block copolymers could be synthesized.
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