PREPARATION AND PROPERTIES OF AMINO-CONTAINING POLY(ARYLE ETHER KETONE)/POLY(ARYLE ETHER KETONE SULFONE) MIDDLE-HIGH TEMPERATURE COMPOSITE PROTON EXCHANGE MEMBRANE: PREPARATION AND PROPERTIES OF AMINO-CONTAINING POLY(ARYLE ETHER KETONE)/POLY(ARYLE ETHER KETONE SULFONE) MIDDLE-HIGH TEMPERATURE COMPOS