| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a triblock copolymer which is useful as a compatibilizer for a biodegradable polymer such as polylactic acid with an existing versatile polymer. <P>SOLUTION: The triblock copolymer is represented by general formula (i) (wherein each R<SP>1</SP>independently represents a member selected from the group consisting of H, -CH<SB>3</SB>, -C<SB>2</SB>H<SB>5</SB>and -CH<SB>2</SB>CH(CH<SB>3</SB>)<SB>2</SB>; n represents an integer of 10-1,000; and A represents a polyester block obtained by ring-opening polymerization of one or more kinds of cyclic esters selected from the group consisting of lactides, glycolides and lactones). <P>COPYRIGHT: (C)2009,JPO&INPIT |
