TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The fluorine-containing olefin is selected from tetrafluoroethylene, chlorotrifluoroethylene, trifluoroethylene, hexafluoropropylene or polyvinylidene fluoride, preferably, the fluorine-containing olefin is selected from tetrafluoroethylene or chlorotrifluoroethylene. The fluorine-containing olefin monomer with functional radical is selected from compounds having structural formulae (II-VI). A peroxide evocating agent is also used during fluorine-containing ion exchange resin preparation and has structural formulae (VII-VIII). Y1(CF2)a(CFRf1)b(CFRf2)cO(C(CF2X)FCF2O)b-CF=CF2 (II) RF3CF=CF(CF2)dY2 (III) F2C=CFOCF2C(CF2OCF3)FOCF2CF2Y3 (IV) F2C=CFR4Y4 (V) Y5(CF2)a'(CFRf5)b'(CFRf6)c'O(C(CF2X1)FCF2O)n'-CF=CF2 (VI) R1OOR2 (VII) R3OCOO=OCOOR4 (VIII)a-c=0-1;d=0-5;n, n'=0-1;Rf1-Rf3=perfluoroalkyl or chlorofluoroalkyl;X=F, C1, Br or I;Y1-Y3=SO2M, COOR3 or PO(OR4)(OR5), where M is selected from Br, F, C1, OR or NR1R2, R is methyl, ethyl or propyl, H, Na, Li, K or ammonium, R1, R2 is H, methyl, ethyl or propyl and R3-R5 are H, Na, Li, K, ammonium, methyl, ethyl or propyl;Y4, Y5=Cl, Br, I or CN;X1=F, Cl, Br or I; andRf4-Rf6=perfluoroalkyl.Preferred Components: The solvent is selected from dimethyl formamide, dimethyl acetamide, methyl formamide, dimethyl sulfoxide, N-methyl pyrolidone, hexamethyl ammonium phosphate, acetone, water, ethanol, methanol, propanol, isopropanol, glycol or propanetriol. The cross-linking agent is selected from ammonia, hydrazine, organic diamine or substance that release ammonia or hydrazine.    TECHNOLOGY FOCUS - POLYMERS - Preferred Methods: The film is prepared by melt casting, extrusion, heat pressing, spin coating, casting, screen painting, spray finishing or impregnating technology of solution or melt. The multilayered film is prepared by combination between single-layer films, combination between single-layer film and multilayered film or combination between multilayered film and multilayered film, or prepared by extrusion, heat pressing, spin coating, casting, screen painting technologies, spray finishing or impregnating technology of solution or melt on the prepared single-layer film or multilayered film.