| 초록 |
Molecular transition metal catalysis in synthetic organic reactions has long been studied as the media for production of various organic materials. Late transition metal catalysts for productive olefin polymerization were reported much later (1990’s), but they have advantages in smooth copolymerization of hydrocarbon olefins with functionalized vinyl-compounds. Recent studies on the polyolefin materials with new properties, including environmentally favorable ones. We have studied in the polymerization of new monomers, such as dienes, highly functionalized olefins, strained olefins, and sterically bulky olefins, suited for polymerization catalyzed by the Ni, Fe, Co, and Pd complexes. Homo- and co-polymerization of the new monomers provided the polymer materials, such as aliphatic liquid-crystalline polymers, a component of the physical gels that undergo a sol-gel transition at the definite temperature, highly-ordered polymers having small membered ring, etc. |
