摘要 |
A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA<SUP>1 </SUP>and OA<SUP>2 </SUP>are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, and the groups represented by OA<SUP>2 </SUP>are the same or different from each other in one molecule, n and m are each average number of moles of the oxyalkylene group added, n represents 0 to 1000, and m represents 10 to 1000.
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