A series of copolycarbonates were prepared by transesterification polymerization of isosorbide, bisphenol A and diphenylcarbonate with several catalysts. When N,N-dimethylaminopyridine was used as a catalyst, the highest molecular weight copolymers were obtained. Based on the storage and tensile moduli, the polymers exhibited a higher strength than that of the bisphenol A-based polycarbonate. Based on these properties, these copolymers exhibit the potential for use as high-performance polymeric materials.
- Chi-Han Lee
- Hideki Takagi
- Makoto Kato