Polyoxadiazole and polytriazole gas separation separation membranes: synthesis and properties

Chapter 2 Two reaction routes for the preparation of aromatic polyoxadiazoles and polytriazoles Syntheses and properties summary Results and discussion Poly-1,3,4-oxadiazoles via polyhydrazides One-step synthesis of poly-1,3,4-oxadiazoles Poly-172,4-triazole via polyhydrazide Poly-1,2,4-triazoles via poly-1,3,4-oxadiazoles Conclusions Acknowledgement Literature Chapter 3 Syntheses and properties of related polyoxadiazoles and polytriazoles summary Introduction Experimental Materials Polyb-, m-pheny1ene)hydrazide synthesis Poly-1,2,4-triazole synthesis using polyhydrazide as a precursor polymer Poly-1,3,4-oxadiazole synthesis Preparation of homogeneous flms Characterisation Results and discussion Poly-1,2,4-t~iazoles via polyhydrazides Poly-l,3,4-oxadiazoles Conclusions Acknowledgement Literature Chapter 4 Gas separation properties of new polyoxadiazole and polytriazole membranes summary Characterisation Results and discussion Influence of the poly-1,2,4-triazole batch Influence of the casting conditions Influence of the feed composition Influence ofthe macromolecular structure Influence of the p -and m-phenylene in poly-l,2,4-triazoles Influence of p-phenyl substitution in poly-1,2,4-triazoles Relation between permeability and free volume of the polymers studied Conclusions Acknowledgement Literature summary