폴리술폰/NMP/물 계의 고화 현상에 관한 연구

Vitrification Phenomena in Polysulfone/NMP/water system

1. INTRODUCTION : Since the knowledge of vitrification phenomena can lead to a better understanding of the mechanism of membrane formation, it is desirable to include vitrification line into the phase diagrams. While the final morphology obtained during phase inversion depends upon the kinetics as well as the thermodynamics of the phase separation, the equilibrium phase diagram and vitrification line for amorphous polymers are still a good tool for controlling the morphology and interpreting the membrane structure.