| 摘要 |
A method of enhancing the ionizing irradiation sterilization stability of an optically transparent, rigid, heat processible thermoplastic polymer comprising modifying the polymer to decrease the glass transition temperature thereof to a value such that: a) the glass transition temperature of the modified polymer is above the desired end-use temperature; b) the modified polymer remains optically transparent, rigid and heat processible; and c) the modified polymer recovers from the discolorization effects produced by exposure to ionizing sterilizing irradiation at a temperature below the glass transition temperature thereof. |
