Perfluorinated ion exchange membranes

Yeager, H. L. Structural and Transport Properties of Perfluorinated Ion-Exchange Membranes 16... 

Perfluorinated Ion-Exchange Membranes Young, L. Anodic and Electronic Currents at High... 

T. Sata, K. MotaniandY. Ohaski, Perfluorinated Ion Exchange Membrane, Neosepta-F and Its Properties, in Ion Exchange Membrane, D.S. Flett (ed.), Ellis Horwood Ltd, Chichester, pp. 137-150 (1983). 

Vasil ev V, Borisov SM. Optical oxygen sensor based on phosphorescent metal porphyrins immobilized in perfluorinated ion-exchange membrane. Sens Actuators 2002 B82 272-6. 

This is evidenced by the amount of literature on ionomers and by the appearance of two monographs devoted to the subject (J, ). Most of the research effort on the ionomers has focused on only a small number of materials, notably ethylenes (3-9 ), styrenes (10,11), rubbers (12-16) and recently aromatic (17) and fluorocarbon-based ionomers (18). The last material is known for its high water permeability and cation permselectivity. Because of its unique properties, it has been employed as an ion-exchange membrane in chlor-alkali cell operations in electrochemical industries. Perfluorinated ion-exchange membranes are the subject of the present chapter. 

A sizable amount of literature (24-38) exists on various aspects of ionic structure and proposed models (29, 40-42), thus interested readers are refered to the original literature. This paper presents a brief review of the recent advances in the structure and properties of perfluorinate ion-exchange membranes. 

Underwater Stress Relaxation Studies. The underwater stress relaxation studies on Nafion perfluorinated ion-exchange membranes were first conducted by Kyu and Eisenberg (47,48). The primary objective of their studies was to elucidate the nature of ionic aggregation and its effect on the primary relaxation (a process) in the materials by Introducing water into the ionic region. Due to the hydrophilic... 

The interest in perfluorinated ion-exchange membranes has increased extensively in recent years because of their industrial importance. A growing body of research concerning their structure and properties has developed. Much of this work has been summarized in a recent monograph. " While perfluorinated anion-exchange membranes have not yet been produced, several perfluorinated cation-exchange types have been synthesized and fabricated into membrane form, as listed in Table 1. 

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