| abstract |
(57) Abstract: It is an object of the present invention to provide a high molecular weight polyester polymer having heat stability and mechanical properties that can be used as a molded article, a fiber and a film and having an excellent color tone. A repeating polyester polymer represented by the general formula (1), characterized by having a number average molecular weight of 10,000 or more measured by gel permeation chromatography and converted into standard polystyrene. Polyester polymer to be used. Embedded image (In the formula, m represents an integer of 2 or more.) |