| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-performance polymer product having an unprecedented heat characteristic and a high melting point.SOLUTION: Provided is a polymer product having a difference of melting points (Tm1-Tm0) of 3°C or more, where a melting point Tm0 is of a polymer before heating and a melting point Tm1 is of the polymer after having been heated in a nitrogen atmosphere at a temperature 10 to 50°C higher than the maximum melting point of the polymer for 60 minutes, or a polymer product having a difference of melting points (Tm2-Tm3) of 0°C or more and less than 3°C where a melting point Tm2 is of the polymer before heating and a melting point Tm3 is of the polymer after having been heated in a nitrogen atmosphere at a temperature 10 to 50°C higher than the maximum melting point of the polymer for 60 minutes. |
