| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel branched heteropolyfunctional polyoxyalkylene compound high in stability and homogeneity for modification of bio-related substances. <P>SOLUTION: The branched heteropolyfunctional polyoxyalkylene compound is represented by formula (1), wherein: Z is a dehydroxylated residue of pentaerythritol or dipentaerythritol; OA<SP POS="POST">1</SP>and OA<SP POS="POST">2</SP>are a 2-4C oxyalkyelene group; L<SP POS="POST">1</SP>, L<SP POS="POST">2</SP>and L<SP POS="POST">3</SP>are an alkylene group or an alkylene group containing an ester bond, a urethane bond, an amido bond, an ether bond, a carbonate bond, a secondary amino group or a urea bond; X and Y are chemically reactive functional groups, which are different from each other; m is 5 to 1,000; n is 0 to 1,000; p, q and r are 0 or 1; s<SP POS="POST">1</SP>is an integer of ≥2; and s<SP POS="POST">1</SP>+s<SP POS="POST">2</SP>=4 or 6. <P>COPYRIGHT: (C)2013,JPO&INPIT |
