| abstract |
An object of the present invention is to provide a thermoplastic polymer having a high degree of colorless transparency and having excellent heat resistance, moldability, and retention stability, a method for producing the same, and a molded article comprising the thermoplastic polymer. An ultraviolet-visible spectrophotometer containing a glutaric anhydride unit represented by the following general formula (1) at a wavelength of 280 nm (where the absorbance is measured using a film having a thickness of 100 μm): Is 0.5 or less, and the glass transition temperature is 130 ° C. or more. (In the above formula, R 1 and R 2 represent the same or different hydrogen atoms or alkyl groups having 1 to 5 carbon atoms.) [Selection diagram] None |