| 摘要 |
A copolymer having units of Formula II: <IMAGE> II wherein M is H, alkali metal, ammonium cation, or a mixture thereof; N is OM or a mixture of OM, OR, and NR1R2 in a molar ratio of (OM):(OR):(NR1R2) of [1-(e+f)]:e:f, wherein e and f are each independently 0 to 0.5, provided that (e+f) is less than 0.8; R, R1, and R2 are each independently H or a branched or straight chain C1-20 alkyl; Y is a C2-10 alkyl, C6-12 aryl, or C4-12 alkoxy; X is a fluorinated thiol radical; Z is H; and v and w are each a positive number such that the molar ratio of v to w is from about 0.4:1 to about 1.3:1 is disclosed.
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