Polymers whose repeating units are of structure ##STR1## are prepared by polymerization of novel biphenylyloxybenzoyl moiety-containing monomers reactive in HF and BF.sub.3 to form carboxonium ion-containing intermediates (e.g., biphenylyloxybenzoyl halide monomer), preferably in the presence of aromatic capping agents sufficient in amount to yield polymer of mean inherent viscosity from about 0.5 to 1.7. Such polymer may be employed, e.g., for insulative coating of conductive articles such as wire and cable.
重复单元结构为##STR1##的高分子聚合物是通过聚合新型的双苯氧基苯并苯甲酰基含有单体,该单体在HF和BF.sub.3 中具有反应性,形成含有羧环离子中间体(例如,双苯氧基苯并苯甲
酰卤代单体),最好在芳香族封端剂的存在下,其数量足以产生平均固有粘度为0.5至1.7的高分子。这样的聚合物可以用于导电物品(如电线和电缆)的绝缘涂层等领域。