| 摘要 |
A polymer consisting mainly of structural units represented by the general formula (1), wherein the total molar amount of terminal aldehyde groups and acetal groups is 0.6 mol % or smaller based on the total molar amount of the structural units represented by the general formula (1). -[-(-CHR<SUB>1</SUB>-)<SUB>n</SUB>-CX<SUB>1</SUB>R<SUB>2</SUB>-CX<SUB>2</SUB>R<SUB>3</SUB>-]- (1) (In the formula, n is an integer of 2 to 10; X<SUB>1 </SUB>and X<SUB>2 </SUB>each represents -H, -OH, or a functional group capable of being converted into -OH, provided that at least one of X<SUB>1 </SUB>and X<SUB>2 </SUB>is hydroxy or a functional group capable of being converted into hydroxy; and R<SUB>1</SUB>, R<SUB>2</SUB>, and R<SUB>3 </SUB>each represents -H or C<SUB>1-5 </SUB>alkyl, aryl, aralkyl, or heteroaryl and the two or more R<SUB>1</SUB>'s may be different).
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