| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a copolymer incorporating a cage structure into the main chain, and to provide a curable resin composition comprising the copolymer. <P>SOLUTION: The cage structure-containing curable silicone copolymer has a structural unit represented by general formula (1): Y-[Z-(O<SB>1/2</SB>-R<SP>2</SP><SB>2</SB>SiO<SB>1/2</SB>)<SB>a</SB>-(R<SP>1</SP>SiO<SB>3/2</SB>)<SB>n</SB>-(O<SB>1/2</SB>)<SB>b</SB>]<SB>m</SB>-Z-Y äwherein R<SP>1</SP>and R<SP>2</SP>represent each a vinyl group, an alkyl group, a phenyl group, an acryloyl group or a methacryloyl group, an allyl or a group having an oxirane ring; Z represents a divalent group represented by general formula (2); and Y is any of following (3) to (5): (3) [(R<SP>4</SP>O)R<SP>2</SP><SB>2</SB>SiO<SB>1/2</SB>]<SB>a</SB>-[R<SP>1</SP>SiO<SB>3/2</SB>]<SB>n</SB>-[O<SB>1/2</SB>]-, (4) [R<SP>4</SP>O<SB>1/2</SB>]<SB>b</SB>-[R<SP>1</SP>SiO<SB>3/2</SB>]<SB>n</SB>-[O<SB>1/2</SB>-R<SP>2</SP><SB>2</SB>SiO<SB>1/2</SB>]-, (5) (R<SP>4</SP>O<SB>1/2</SB>)-, and (6) (R<SP>2</SP><SB>3</SB>SiO<SB>1/2</SB>)- (wherein, R<SP>4</SP>is a hydrogen atom, a methyl group or an ethyl group)}. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
