文摘
英文文摘
Acknowledgements
Chapter 1 General Introduction
Chapter 2 Positronium Formation and Annihilation
Chapter 3 Free volume Theory and Determination of Free Volumes
Chapter 4 Positron Annihilation Studies in Polymers
Chapter 5 AFM and PAL Study of SPEK-C membranes
Chapter 6 Study of a novel positively charged asymmetry membrane from poly (2,6-dimethyl-1,4-phenylene oxide) by benzyl bromination
Chapter 7 Final Remarks and Future Considerations
Appendix
Publications