| 摘要 |
An aromatic ring-containing polymer is provided having excellent flexibility and surface water-repellency. The polymer containing an aromatic ring has a fluoroalkyl group having two or more carbon atoms as a side chain, which is optionally interrupted by divalent group, wherein the fluoroalkyl group satisfies the following formula (a): <?in-line-formulae description="In-line Formulae" end="lead"?>A/(A+B)>=0.4 (a)<?in-line-formulae description="In-line Formulae" end="tail"?> wherein in the formula, A represents the number of fluorine atoms in the fluoroalkyl group and B represents the number of hydrogen atoms in the fluoroalkyl group.
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