TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Component: The proton conducting polymer further includes an inorganic additive (e.g. metal phosphate or metal phosphonate) chemically bonded to the polymer that improves the properties of the polymer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The main chain includes -hexafluoropropene- groups.    TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The polymer is obtained from sulfonated dihalo monomer of formula (A), or can be obtained by reacting polymers with functional groups that undergo substitution reaction with aromatic halo compounds, which are sulfonated aromatic halo compounds of formula (B).R=H, Li, Na, K, or Cs;X=F or Cl;Y=bond, -C(=O)-, -SO2-, -C(CF3)2-, or -(CH2)n-;n=1-10; andQ=bond, aryl, alkyl, fluoroalkyl, or fused heterocyclics. EXAMPLE - About 10 g of 2,4-dichlorobenzophenone was weighed in bottom flask. Fuming sulfuric acid (15 ml) was slowly added to the flask. The content in the flask was slowly heated using an oil bath to 110degreesC and kept at that temperature for 2 hours and then cooled to room temperature. The solution was poured on to 250 ml of ice cold water. The acidic solution was neutralized with sodium hydroxide and salted out using sodium chloride (NaCl). The product was isolated by filtration and washed several times with saturated NaCl solution. The product, aryl sulfonic acid monomer, was then recrystallized from hot ethanol. Bisphenol A (5.0018 g), 4,4'-difluorobenzophenone (3.3425 g), aryl sulfonic acid monomer (1.6575 g), potassium carbonate (6.1 g), N-methyl-2-pyrrolidinone (80 ml) and toluene (40 ml) were charged in a resin kettle. The reagents were heated slowly until the reflux temperature reached (-133degreesC) and maintain the reflux for 4 hours. Toluene was gradually removed and the temperature was increased to 180degreesC. The reaction was maintained for 20 hours at that temperature. At the end of 20 hours, the reaction mixture was cooled down to 80degreesC and the polymer solution were filtered. The filtered solution was isolated by precipitating in water and drying in a vacuum oven at 120degreesC for 24 hours.