▎ 摘　　要

NOVELTY - Ionic block copolymer (I), are new. (I) have acrylic or methacrylic base structure. USE - (I) are useful in carbon nanotube support and carbon nanotube-oxide graphene composite for supporting metal nanoparticles (all claimed). ADVANTAGE - (I) have amphipathic property, and reduces interaction between base materials, and aggregation phenomenon. The support has low electric conductivity and increased electron mobility. DETAILED DESCRIPTION - Ionic block copolymer of formula (I), are new. (I) have acrylic or methacrylic base structure. R1 = hydrophobic group including benzyl, cyclohexyl or furfuryl, or hydrophilic group including alkyl, ethylene glycol or alkyl alcohol, preferably 1-18 consecutive alkyl or non-contiguously isobutyl group or 2-ethylhexyl group; R2 = Br, Cl or I; R3 = benzyl, naphthalene, coumarin, rhodamine, fluorocene, pyrene, pentacene, thiophene or aniline, where R3 containing block including monomer exhibiting amphipathic properties, preferably hydrophilic ion group and hydrophobic R3 group; n = 10-50; x+y = m; m = 100; and y = greater than or equal to 1. INDEPENDENT CLAIMS are also included for: (1) carbon nanotube support comprising carbon nanotube coated with (I), where R2 and R3 are bonded with carbon nanotube through physical bond including cation-pi bond or pi-pi bond; and (2) carbon nanotube-oxide graphene composite comprising carbon nanotube support introduced into the graphene oxide; and (3) metal catalyst having metal nanoparticles supported on the carbon nanotube-oxidized graphene composite.