Composites comprising rigid-rod polymers and graphene nanoparticles and process for making the same
AssigneeTJC Polymer Inc.
InventorsThuy D. Dang, John D. Busbee
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Abstract
The present invention relates to composites comprising rigid-rod polymers and graphene nanoparticles, processes for the preparation thereof, nanocomposite films and fibers comprising such composites and articles containing such nanocomposite films and fibers.
Claims30
A polymer composite comprising a polymer and graphene nanoparticles dispersed in the polymer, the polymer comprising at least 50 wt % rigid rod polymer repeat units, wherein the graphene nanoparticles, on average, contain less than 25 planar graphene sheets in a stacked arrangement, and wherein the rigid rod polymer repeat units are derived from repeat units corresponding to Formula 1 or Formula 2
- wherein the A1 ring is a six-membered aromatic or a six-membered heterocyclic ring, Y is —O—,—S—or —NR′, R′ is hydrogen, hydrocarbyl, substituted hydrocarbyl or acyl, and X1 and X2 are independently a bond, para-ordered aryl or para-ordered heterocyclic ring.
The polymer composite comprising a polymer and graphene nanoparticles dispersed in the polymer, the polymer comprising at least 50 wt % rigid rod polymer repeat units, wherein the graphene nanoparticles, on average, contain less than 25 planar graphene sheets in a stacked arrangement, wherein polymer is a block copolymer comprising polymeric blocks corresponding to the following formulae
- wherein Y and Z are the same or different and are selected from the group consisting of —O—, —S— and —NR′, R′ is hydrogen, hydrocarbyl, substituted hydrocarbyl or acyl;
- m is an integer that exceeds at least 50% of the number of repeat units in the polymer, and n is an integer.
Dependencies are inferred from the claim text.