In particular, for polymers with the aromatic groups along the polymer backbone generally at least about 55 percent of the aromatic ring positions are fluorinated.
尤其，对于沿着聚合物主链带有芳基的聚合物通常有至少约55%的芳环位置被氟化。
2
Fluorinated polymers of interest have aromatic groups in their repeat units and at least about 25 % of available aromatic ring positions fluorinated.