TECHNOLOGY FOCUS - POLYMERS - Preferred Material: The hydrophilic segment comprises at least one structure selected from the following formulae: -(R1((B1-(A1)n2)n3)-X1)n1- (I); -(C(W11)(W12)-C(W13)(D1-(B4-(A4)n14)n15))n16- (VI); or -(R8)n22-((Ar1)n22-((R9)n24-A6)n25)n26 (X); and the hydrophobic segment comprises at least one structure selected from the following formulae: -(R2((E1)n5)-X2((E2)n6))n4- (II); -(C(W14)(W15)-C(W16)(D2-(-(E6)n17))n17- (VII); or -(R10)n27-((Ar2n28-(R11)n29)n30 (XI). The carbon material (M1) is a carbon black or carbon nanotube. The hydrophilic segment and the hydrophobic segment are connected by identical connection groups. The hydrophilic segment and hydrophobic segment form an alternately repeating block copolymer that is connected to the surface of the carbon material. The hydrophilic segment comprises: a structure of formula (I) and the hydrophobic segment comprises a structure of formula (II); or a structure of formula (VII) and the hydrophobic segment comprises a structure of formula (VII). The side chain comprises a hydrophilic segment that is grafted on a main chain comprising a hydrophobic segment; where the hydrophobic segment comprises a structure of formula (II) and the hydrophilic segment comprises a structure of formula (VI). Or the side chain comprises a hydrophobic segment that is grafted on a main chain comprising a hydrophilic segment; where the hydrophilic segment comprises a structure of formula (I) and the hydrophobic segment comprises a structure of formula (VII).n3, n5 and n6=0-4;W11-W16=H, halo, alkyl, aryl, or heterocyclic;D1 and D2=single bond or a group comprising aromatic ring (optionally substituted);B4=single bond or a bivalent to hexavalent connection group;A4=ionic functional group;E6=substituent of high oxygen permeability;n16 and n18=integer of greater than or equal to2;n14, n15, and n17=1-5;R8 and R9=bi- to tetra-valent connection group;Ar1=bi- to hexa-valent connection group comprising aromatic hydrocarbon group or a heterocyclic group;A6=ionic functional group;n22-n24=integer of greater than or equal to0;n22+n23+n24=integer of greater than or equal to1;n25=1-10;n26=1-3;R10=bi- to tetra-valent connection group;R11=monovalent group not comprising an aromatic ring;Ar2=bi- to hexa-valent connection group comprising aromatic hydrocarbon group or heterocyclic group;n27 and n28=integer of greater than or equal to0;n29=integer of greater than or equal to1;n30=1-3.Preferred Method: Manufacturing the catalyst material (M1) involves polymerizing a compound represented by the formula Z1-R3((B2-(A2)n7)n9)-X3-R4((B3-(A3)n8)n10)-Z2 (III) and a compound represented by the formula Z3-R5-Z4 (IV); and polymerizing the compound represented by the formula (IV) and the compound represented by the formula Z5-R6((E3)n11)-X4((E4)n12)-R7((E5)n13)-Z6 (V). The manufacturing a catalyst material involves polymerizing the compound represented by the formula (W21)(W22)C=C(W23)(D3-(B5-(A5)n19)n20) (VIII), and polymerizing a compound represented by the formula (W24)(W25)C=C(W26)(D4-(E7)n21) (IX). Manufacturing a catalyst material for a fuel cell of involves chloromethylating the aromatic ring possessed by the main chain structure of the formula (II), and graft polymerizing at least the compound of formula (VIII) with the chloromethylated portion as a polymerization initiation point. Or manufacturing a catalyst material involves chloromethylating the aromatic ring possessed by the main chain structure represented by formula -(R1-X1)n1- in the formula (I), and graft polymerizing at least the compound represented by the formula (IX) with the chloromethylated portion as a polymerization initiation point. The hydrophilic segment and the hydrophobic segment are connected by way of different connection groups to the surface of the carbon material.X3=single bond or a bivalent connection group;R3 and R4=group comprising an aromatic ring;B2 and B3=single bond or a bi- to hexa-valent connection group;A2 and A3=ionic functional group;n7 and n6=1-5;n9 and n10=0-4;n9+n10=greater than or equal to2;Z1-Z6=hydroxyl, halo, alkyl-sulfonate, or nitro;R5=group comprising an aromatic ring;X4=single bond or bivalent connection group;R6 and R7=group comprising aromatic ring;E3-E5=substituent of high oxygen permeability;n11-n13=0-4;n11+n12+n13=greater than or equal to1;W21-W26=H, halo, alkyl, aryl, or heterocyclic ring;D3 and D4=single bond or a group comprising aromatic ring (optionally substituted);B5=single bond or a bi- to hexa-valent connection group;A5=ionic functional group or ionic functional group precursor;E7=substituent of high oxygen permeability;n19-n21=1-5.Preferred Membrane: The catalyst membrane further comprises a catalyst material for use in a fuel cell having neither the hydrophilic segment nor the hydrophobic segment on the carbon surface. EXAMPLE - A catalyst material was prepared by the modification of Carbon ECP (RTM: carbon black) hydroxy groups containing material. The carbon black containing hydroxy groups was functionalized by treating with 1,5-dibromopentane to obtain bromopentyloxy-containing carbon black. A hydrophilic segment precursor was introduced to the carbon surface using bisphenol A and 4,4'-dichloro-diphenyl sulfone. Then A hydrophobic segment was introduced by treating the hydrophilic segment containing carbon material with 4,4'-isopropylidene bis(2,6-dimethylphenol) and 4,4'-dichloro diphenyl sulfone to obtain carbon material/copolymer containing hydrophilic and hydrophobic blocks. The sulfo groups were introduced in the hydrophilic segment of the copolymer by chloromethylation by ClCH2OCH3 and sulfonic acid groups were introduced using sodium 3-mercaptopropane-1-sulfonate to obtain the carbon material as carbon black/copolymer containing hydrophilic segment (containing CH2S(CH2)3SO3H groups at 1.7 per repetitive unit) and hydrophobic segment. The carbon material was immersed in aqueous solution of hexamine platinum (IV) chloride at room temperature and reduced in hydrogen gas stream at 180degreesC to obtain catalyst material (M-1). A fuel cell was manufactured by using the catalyst material (M-1) The catalyst material (1.2 g) and a polymer (poly((2-(CH2-S(CH2)3SO3H)-1,4-phenylene-C(Me)2-1,4-phenylene-O-1,4-phenylene-S(O)2-1,4-phenylene-O-) (E-1) (mol. wt. 30000-100000) as binder (as 5% aqueous alcohol solution) (15 g) were mixed and dispersed by a supersonic dispersing device for 30 minutes. The obtained dispersion was coated on carbon paper (350 microns thickness), dried and then punched into a circular shape of 9 mm diameter to obtain a catalyst membrane. (E-1) (mol. wt. 100000-300000) Was used as solid electrolyte membrane and the catalyst membrane obtained as above was bonded on both surfaces of the polymer membrane (E-1) such that the coating surface was in contact with the polymer (E-1) and hot press bonded by hot press to manufacture an MEA. The fuel cell was evaluated for current value. A hydrogen gas was caused to flow in anode side openings. An atmospheric air was caused to flow to cathode side openings. A potentiostat was connected between the anode electrode and the cathode electrode to record a current value at 400 mV. It was observed that the fuel cell showed a current value of 2.43 A/cm2.