COMPOSITE POLYAMIDE MEMBRANE HAVING HIGH ACID CONTENT AND LOW AZO CONTENT
摘要
A thin film composite polyamide membrane comprising a porous support and a thin film polyamide layer characterized by possessing: i) an azo (—N═N—) content of from 0.30% to 0.80%, as measured by pyrolysis gas chromatography; and ii) a dissociated carboxylate content of at least 0.18 mol/kg as measured by RBS at pH 9.5.
申请公布号
EP3092061(A1)
申请公布日期
2016.11.16
申请号
EP20140821448
申请日期
2014.12.15
申请人
DOW GLOBAL TECHNOLOGIES LLC
发明人
TOMLINSON, IAN A.;CIESLINSKI, ROBERT C.;GERHART, BRUCE B.;HAWN, DAVID D.;PAUL, MOU;QIU, XIAOHUA;RICKARD, MARK A.;ROSENBERG, STEVEN;ROY, ABHISHEK;ZU, CHENGLI
