POLYARYLENE BLOCK COPOLYMER HAVING SULFONIC ACID GROUP AND USE THEREOF
申请人:YAMAKAWA Yoshitaka
公开号:US20120052412A1
公开(公告)日:2012-03-01
A polyarylene copolymer having a sulfonic acid group which has high proton conductivity and reduced swelling in hot water and reduced shrinkage in drying; a solid polymer electrolyte and a proton conductive membrane comprising the copolymer; and a membrane-electrode assembly using these.
The polyarylene block copolymer comprises a polymer segment (A) having a sulfonic acid group, and a polymer segment (B) having substantially no sulfonic acid group, the polymer segment (B) having substantially no sulfonic acid group comprising a structural unit represented by the following formula (1).
Transparent Polyarylene Ether Polymer With High Heat Resistance And Method For Preparing The Same
申请人:Han Yang Kyoo
公开号:US20120130041A1
公开(公告)日:2012-05-24
The present disclosure relates to a transparent polyarylene ether polymer with high heat resistance and a method for preparing the same. More particularly, the present disclosure relates to a polyarylene ether polymer and a method for preparing the same, wherein the polyarylene ether polymer has a repeating structure in which cardo-type aromatic diols having a large molecular volume, polyether sulfones which are amorphous polymers having a high glass transition temperature and superior film formability, and polyether ketones which are crystalline polymers having superior heat resistance and mechanical properties are sequentially arranged. The polyarylene ether polymer is both transparent and heat resistant and, thus, can be used, for example, for a flexible plastic substrate.