IONIC POLYMER MEMBRANE COMPRISING RADIATION-CROSSLINKABLE POLY(VINYL ALCOHOL) AND METHOD OF PREPARATION THEREOF

摘要

The present invention provides an ionic polymer membrane prepared by irradiating the compound represented by formula 1 and an ionic polymer. The ionic polymer membrane of the present invention has the advantage of excellent processability, low production costs, high ion exchange capacity and high durability. Also, the method for preparing the ionic polymer membrane of the invention not only facilitates the production of the ionic polymer membrane in a 3-dimensional network structure which has high ion exchange capacity and high dimensional stability but also makes it easy to produce membranes in various forms and sizes by using the composition itself as a coating solution with using the commercialized inexpensive ionic polymer without additional high-risk multi-step introduction process of ionic exchange group. In the aspect of preparation process, the simplicity of the process and suitable for the mass-production, and the production cost is reduced by saving the processing time as much as minimum 1/15 (56 min.) in comparison to the processing time of the conventional thermal-crosslinking (1 hour).

主权项

1. An ionic polymer membrane prepared by irradiating the compound represented by the formula 1 below and an ionic polymer: wherein in the formula 1, R1 is hydrogen or C1-6 straight alkyl or C3-6 branched alkyl; the number of repeating unit a is 500 to 5500; and the number of repeating unit b is 10 to 1500.