| 摘要 |
The present invention relates to a symmetric hyperbranched type silicone-modified polymerizable compound containing a compound represented by the following general formula (1). There can be provided a hyperbranched type silicone-modified polymerizable compound which has flexibility at the branched skeleton itself than the conventional ones, as well as reactivity of a polymerizable functional group is good and it is positionally and sterically symmetric, while it has a highly branched structure having siloxane chains.
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ[(R A R B ) 2 CHOCH 2 ] 2 CHOR C c R D €ƒ€ƒ€ƒ€ƒ€ƒ(1)
wherein R A represents a monovalent linear, branched or cyclic siloxane chain; R B represents a divalent hydrocarbonylene methylene ether group represented by -CH 2 CR b1 R b2 (CR b3 R b4 ) n1 OCH 2 -, each of R b1 , R b2 , R b3 and R b4 may be the same or different from each other and represents a hydrogen atom or a linear, branched or cyclic hydrocarbon group having 1 to 10 carbon atoms which may be bonded to each other, "n1" represents an integer selected from 0 to 10; R C represents a divalent linking group; "c" represents 0 or 1; and R D represents an unsaturated polymerizable functional group. |
