| 摘要 |
<p>1458174 Polymerizing silyl norbornenes BAYER AG 5 March 1975 [7 March 1974 21 Dec 1974] 9103/75 Heading C3P A silicon-containing norbornene derivative of formula wherein R 1 , R 2 and R 3 which may be the same or different are halogen, C 1-20 alkyl or halogen substituted alkyl, R 4 and R 5 are H or C 1-6 alkyl or R 4 is H and R 5 is -(CH 2 ) n SiR 1 R 2 R 3 , and n is 0 to 10, is homopolymerized or copolymerized with a cyclo olefin in the presence of a catalyst consisting of (a) a compound of Re, Ta, Mo, or W; (b) an organometallic compound; and optionally (c) a cocatalyst.</p> |
