TECHNOLOGY FOCUS - POLYMERS - Preparation (Claimed): The segmented copolymer (I) is prepared by dissolving carboxyl-terminated polybutadiene (II) (1-10 pts.wt.) in toluene (25-50 pts.wt.), where thionyl chloride (1-10 pts.wt.) is added to the mixture with agitation at 50-80 degrees C for 1-5 hours in presence of nitrogen. The mixture is then heated at 90-110 degrees C for 10-20 hours. The mixture is cooled after completion of reaction by reducing the pressure. Remaining thionyl chloride is removed by distilling the mixture to obtain toluene solution of chloride-terminated polybutadiene. 4,4'-difluorobenzophenone (2-3 pts.wt.), diphenol monomer (2-4 pts.wt.) and anhydrous potassium carbonate (1-2 pts.wt.) are dissolved in mixed organic solvent (40-60 pts.wt.) and obtained mixture is heated at 150-180 degrees C for 2-5 hours in presence of nitrogen. The mixture is heated at 180-190 degrees C for 16-24 hours and after cooling, the mixture is precipitated by adding alcohol solvent (200-300 pts.wt.). The mixture is filtered and obtained crude product is washed thrice by using de-ionized water. The product is dried in vacuum to obtain fluorine-terminated polyether-ether-ketone. Fluorine-terminated polyether-ether-ketone (3-5 pts.wt.), 4-aminophenol (0.1-0.5 pts.wt.) and anhydrous potassium carbonate (0.1-0.5 pts.wt.) are dissolved in mixed organic solvent (40-60 pts.wt.) and the obtained mixture is heated at 150-180 degrees C for 15-25 hours in the presence of nitrogen. The mixture is cooled after completion of the reaction, where the mixture is precipitated by adding alcohol solvent (200-300 pts.wt.) into the mixture. The mixture is filtered and obtained crude product is washed thrice by using de-ionized water. The product is dried in vacuum to obtain amino-terminated polyether-ether-ketone. Amino-terminated polyether-ether-ketone (1-2 pts.wt.) is dissolved in mixed organic solvent (30-50 pts.wt.) by agitating the mixture uniformly. Triethylamine (0.1-1.0 pts.wt.) is added to the mixture and then toluene solution of chloride-terminated polybutadiene (3-8 pts.wt.) is added to the mixture dropwise. The mixture is heated at 50-70 degrees C for 6-18 hours to carry out the reaction. The mixture is cooled and then alcohol solvent (200-300 pts.wt.) is added to the mixture for precipitating it. The mixture is filtered and then obtained crude product is washed thrice by using de-ionized water. The crude product is dried in vacuum to obtain segmented copolymer of polyether-ether-ketone and polybutadiene. Concentrated sulfuric acid (15-20 pts.wt.) is dripped slowly into acetic anhydride (15-20 pts.wt.) under water-bath condition by agitating the mixture constantly for 6-12 hours to obtain acetyl sulfonate. Segmented copolymer of polyether-ether-ketone and polybutadiene (1-2 pts.wt.) is dissolved in tetrahydrofuran (30-50 pts.wt.), where acetyl sulfonate (6-10 pts.wt.) is added to the mixture dropwise by agitating the mixture uniformly. The mixture is heated at 60-90 degrees C for 6-18 hours in the presence of nitrogen. Alcohol solvent (200-300 pts.wt.) is added to the mixture after completion of the reaction, where sodium hydroxide is used to neutralize the mixture. The mixture is filtered and then obtained crude product is washed by using alcohol solvent (50 pts.wt.) and then washed by de-ionized water. The product is dried in vacuum to obtain segmented copolymer of polyether-ether-ketone and sulfonated polybutadiene, where the mixed organic solvent is toluene solution of N-methyl-2-pyrrolidone or toluene solution of dimethyl sulfoxide with mass concentration of 50-70%.p=50-80.Preferred Components: Diphenol monomer is 4,4'-dihydroxydiphenyl propane or 4,4'-dihydroxydiphenyl hexafluoropropane. Alcoholic solvent is methanol or ethanol.