Fluorinated Ionomers

ISBN: 9781437744576 出版年：2011 页码：313 Grot, Walther William Andrew_RM

Abstract The first fluorinated ionomer was discovered in the early 1960s at the DuPont Experimental Station near Wilmington, Delaware. It was a perfluorinated ionomer that later became known as Nafion®. Similar polymers are now being produced by Asahi Glass (Flemion™) and Asahi Kasei (Aciplex™). These polymers in membrane form have revolutionized the chlor-alkali industry. In this process, the need to use hazardous materials such as mercury and asbestos not only has been eliminated, but the economics, particularly with respect to reduced energy consumption, has also been substantially improved. This application has now matured to such an extent that the complete replacement of the two older mercury and asbestos technologies is only a question of time.