| abstract |
The invention belongs to the field of high polymer materials, relates to a preparation method of polycarbonate, and particularly relates to a method for preparing polycarbonate by using a fused ester exchange process. The preparation method of the polycarbonate, which is disclosed by the invention, comprises the following steps: a, carrying out transesterification on solid bisphenol A and diphenyl carbonate in a reaction kettle; and b, carrying out condensation polymerization under protection of nitrogen. The polycarbonate prepared by the preparation method contains fewer branched crosslinking products, and is good in hue. |