Norbornene derivative, norbornene polymer produced by ring-opening (co)polymerization, and process for producing the polymer by ring-opening (co)polymerization
申请人:Miyamoto Yoshikazu
公开号:US20070065747A1
公开(公告)日:2007-03-22
The norbornene derivative of the present invention is represented by the following formula (Im).
According to the present invention, a novel norbornene derivative that is useful as a precursor monomer for preparing a cycloolefin polymer exhibiting excellent transparency, heat resistance and low-water absorption properties and having been freely controlled in the birefringence properties and the wavelength dispersion properties can be provided. According to the present invention, further, a norbornene ring-opened (co)polymer having excellent transparency and heat resistance, exhibiting high solubility in organic solvents and having specific birefringence properties and wavelength dependence, and a process for preparing the ring-opened (co)polymer can be provided.