发明名称 Anion exchanging polyimides - contg quaternary ammonium groups for ion exchange membranes in electrodialysis
摘要 <p>Polymers or copolymers are of formula (where R = an organic gp; Ar = an aromatic grp; R'R" and R"' are aliphatic or araliphatic gps; X circled negative an anion; x = 1-4; n = an aliphatic, alcyclic or homo-or hetero-cyclic-aromatic gp. The polymers may be used in high electric fields in electrodialysis.</p>
申请公布号 FR2087170(A5) 申请公布日期 1971.12.31
申请号 FR19700016709 申请日期 1970.05.06
申请人 IFP INSTITUT FS PETROLE 发明人
分类号 C08G73/10;(IPC1-7):08G20/00;08G51/00;01D13/00 主分类号 C08G73/10
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