申请人:SHPP GLOBAL TECHNOLOGIES B.V.
公开号:US11111336B2
公开(公告)日:2021-09-07
A poly(phenylene ether) copolymer of 2-methyl-6-phenylphenol and a dihydric phenol having an absolute number average molecular weight of 1,000 to 10,000 grams/mole is made by polymerization of 2-methyl-6-phenylphenol and a dihydric phenol in the presence of molecular oxygen, a polymerization catalyst comprising a metal ion and at least one amine ligand, and a solvent composed of at least 95 weight percent of a C1-C3 alcohol selected from methanol, ethanol, 1-propanol, and 2-propanol. The poly(phenylene ether) copolymer can be, for example, a copolymer of 2-methyl-6-phenylphenol, 2,2-bis(3,5-dimethyl-4-hydroxyphenol)propane, and optionally 2,6-dimethylphenol. The poly(phenylene ether) copolymer finds utility in curable compositions, cured compositions, and articles.
2-甲基-6-苯基苯酚和二水合苯酚的绝对平均分子量为 1,000 至 10,000 克/摩尔的聚亚苯基醚共聚物,是由 2-甲基-6-苯基苯酚和二水合苯酚在分子氧、聚合催化剂(由金属离子和至少一种胺配位体组成)以及溶剂(由至少 95% 的选自甲醇、乙醇、1-丙醇和 2-丙醇的 C1-C3 醇组成)的存在下聚合而成。例如,聚亚苯基醚共聚物可以是 2-甲基-6-苯基苯酚、2,2-双(3,5-二甲基-4-羟基苯酚)丙烷和 2,6-二甲基苯酚的共聚物。这种聚(亚苯基醚)共聚物可用于固化组合物、固化组合物和物品。