2016-08-242016-08-242009-01-06http://hdl.handle.net/10919/72594A family of polymers having pendent sulfonate moieties connected to polymeric main chain phenyl groups are described. These polymers are prepared by the steps of polymerization (using a monomer with a phenyl with an alkoxy substitution), deportation by converting the alkoxy to a hydroxyl, and functionalization of the polymer with a pendant sulfonate group. As an example, sulfonated poly(arylene ether sulfone) copolymers with pendent sulfonic acid groups are synthesized by the direct copolymerization of methoxy-containing poly(arylene ether sulfone)s, then converting the methoxy groups to the reactive hydroxyl form, and finally functionalizing the hydroxyl form with proton-conducting sites through nucleophilic substitution. The family of polymers may have application in proton exchange membranes and in other applications.application/pdfen-USPatenthttp://pimg-fpiw.uspto.gov/fdd/14/737/074/0.pdf11119353429/303429/306429/340429/345429/493521/27521/33525/345C08J5/2256C08G65/48C08G75/23C08J2371/12C08J2381/067473714