Method of polycarbonate preparation

Prepared rearranges the product low content being or detecting the comprising and derived from or quinhydrone, methylhydroquinone, and bisphenol, and 4,4 ' - diphenol of one or more of repeating units of a polycarbonates of one of the preceding to the aromatic compound or more to the molten polymerization of carbonate and salicyl methyl ester with carbonic acid diaryl ester of ester of preparing. The obtained product Prepared polycarbonate's rearranges the product of low or more situations is detection, wherein the gene is a temperature of the prepared by reacting the effective catalyst system and melting agent uses lower wherein the factor compound has the temperature for using similar polymerization of) carbonate of the result.