초록 |
We designed and synthesized the low reactive initiator to control for the high reactive isocyanate monomer. n-Hexyl isocyanate (HIC) was polymerized with changing reaction time via anionic polymerization with various anionic species such as carbo anion, nitro anion, oxy anion and amidate anion in THF at -98 ,oC. In case of sodium benzanilide and sodium diphenylamine, the quantitative yield of PHIC was obtained at -98 ,oC and the controlled MW and narrow MWD was obtained by the anionic polymerization.
|