▎ 摘　　要

NOVELTY - Composition comprises a polymer comprising poly(phenylene) backbone represented by figure 3 as given in the specification, and a sidechain including a N-heterocyclic structure and piperidine. USE - The composition is useful in an anion exchange membrane (claimed) which is used in alkaline membrane water electrolysis. ADVANTAGE - The composition: improves membrane properties; is inexpensive, chemically stable anion exchange membrane materials with controlled water uptake to enable the performance of developing electrochemical and separation systems; provides membranes which allow for the transportation of anions under a chemical or electrical potential; and is low cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for an anion exchange membrane (110) comprising a porous support scaffold, an anion conductive polyphenylene polymer (130) comprising polyphenylene backbone and side chains with functional groups, and additives. DESCRIPTION OF DRAWING(S) - The figure shows a cross sectional view of an exemplary anion exchange membrane formed from treating the precursor polymer membrane with trimethylamine. 10Porous scaffold 110Anion exchange membrane 120Surface layers 130Anion conductive polymer