Patent ID: 7652089

Claim:
A nanocomposite comprising: a sulfonated polysulfone, wherein the sulfonated polysulfone is represented by formula 1 below: where, R 1 is the same or different and is an C1-C10 alkyl group, a C2-C10 alkenyl group, a phenyl group or a nitro group, p is an integer of 0-4, X is —C(CF 3 ) 2 —, —C(CH 3 ) 2 — or —P(═O)Y′—(Y′ is H or C 6 H 5 ), M is Na, K, or H, m is 0.1-10, n is 0.1-10, and k is 5-500; and a nonmodified clay dispersed in the sulfonated polysulfone, the nonmodified clay having a layered structure, and the nonmodified clay being intercalated with the sulfonated polysulfone, or the layers of the layered structure being exfoliated.