【摘 要】
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Cyclic olefin copolymers (COCs) are amorphous materials with a promising combination of high transparency in the UV-Vis region along with humidity-, heat-resistance (high Tg).Three processes such as (
【机 构】
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Department of Chemistry,Tokyo Metropolitan University,Hachioji,Tokyo 192-0397,Japan
【出 处】
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Seventh International Symposium On Engineering Plastics (第七届
论文部分内容阅读
Cyclic olefin copolymers (COCs) are amorphous materials with a promising combination of high transparency in the UV-Vis region along with humidity-, heat-resistance (high Tg).Three processes such as (1) ring-opening metathesis polymerization (ROMP) of multi-cyclic olefins and subsequent hydrogenation, (2) coordination copolymerization (of ethylene) with cyclic olefins, (3)homo-polymerization of cyclic olefins, are generally known for the practical production.In particular, the copolymerization route seems promising, because the desired properties can be tuned by their compositions as well as their microstructures.Therefore, development of the efficient catalysts which enables synthesis of new copolymers attracts considerable attention.
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