Novel Function Latent in Organometallic Compounds

1)过渡金属配合物的活性聚合：利用新型的以三吡啶、吡啶-亚胺或tropolone为配体的Nb、Ru、Co、Ni、Mo、Fe、Ti和W配合物，研究了乙烯、降冰片烯或它们的聚合及其共聚。因此，铁配合物对1,3-共轭二烯的聚合表现出很高的催化活性，而钛化合物对己内酯的聚合表现出很高的催化活性。Ni和Co配合物得到了降冰片烯的高分子量乙烯基聚合物，而Mo配合物对降冰片烯的ROMP具有较高的催化活性。2)新型生物可降解聚合物：我们研究了丙交酯与环碳酸酯共聚合成己内酯的方法，以获得低成本、力学性能良好的生物可降解聚合物。结果表明，由LA/CL/LA组成的三维嵌段共聚物是一种优良的可生物降解高分子材料。3)高介孔活性炭的新功能：除了沥青外，苯酚树脂和聚偏二氯乙烯/MMA也可以通过添加稀土金属和Mn化合物来制备所需的介孔碳。考察了这些材料在燃料电池、超容量、加氢催化剂等方面的应用。

1) Living Polymerizations by Transition Metal Complexes : Ethylene, norbornene or polymerizations and their copolymerizations were examined using novel Nb, Ru, Co, Ni, Mo, Fe, Ti and W complexes having terpyridine, pyridine-imido or tropolone ligand. As a result, Fe complexes exhibit high catalytic activity for polymerizations of 1,3-conjugated dienes, and Ti compounds for caprolactone. Ni and Co complexes gave high molecular weight vinyl-type polymers of norbornene, while Mo complexes show high catalytic activity for ROMP of norbornene.2) Novel Biodegradable Polymers : We examined the copolymerizations of lactide with cyclic carbonates ar caprolactone for the purpose of obtaining biodegradable polymers with good mechanical properties in a low cost. As a result, 3 dimensional block copolymers composed of LA/CL/LA was found to be excellent biodegradable polymer material.3) New Function of High Mesoporous Activated Carbon : Not only pitches but also phenol resins and poly(vinyliden chloride/MMA) produce the desired mesoporous carbon by the addition of rare earth metal and Mn compounds. The usefulness of these materials as fuel cells, super-capacity, and hydrogenation catalyst were examined.