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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsHiroshi Akita, Hiroto Kobayashi
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An aromatic heterocyclic compound and an aromatic diamino compound are allowed to separately react with a dicarboxylic acid derivative in an organic solvent, thereby synthesizing two kinds of oligomers, and these two kinds of oligomers are allowed to react with each other in an organic solvent to synthesize a block copolymer precursor, or an aromatic heterocyclic compound, an aromatic diamino compound and a dicarboxylic acid derivative are allowed to react in an organic solvent, thereby synthesizing a random copolymer precursor. The block or random copolymer precursor and a matrix polymer are dissolved in an organic solvent, then, the solvent is removed from the solution, and the resulting coagulum is heated to induce a ring-closing reaction, thereby obtaining a molecular composite material in which the copolymer is dispersed finely and homogeneously in the matrix polymer.
A formed article of an aromatic heterocyclic copolymer having a three dimensional mesh structure in which an aromatic heterocyclic compound and an aromatic diamino compound are random copolymerized or block copolymerized, and in which the aromatic heterocyclic copolymer is prepared by a process that comprises subjecting an uncyclized block copolymer precursor or random copolymer precursor to (i) mold hot pressing at a temperature around a melting point of the soft chain fragment in the copolymer precursor, followed by (ii) internal mold heat treatment to induce a ring-closing reaction of said block or random copolymer precursor by elevating said temperature;
A method for producing a formed article of an aromatic heterocyclic copolymer comprising (i) allowing (a) an aromatic heterocyclic compound and (b) an aromatic diamino compound to separately react with (c) a dicarboxylic acid derivative in an organic solvent, thereby synthesizing two kinds of oligomers, and allowing these two kinds of oligomers to react with each other in an organic solvent to synthesize a block copolymer precursor, or allowing (a) an aromatic heterocyclic compound, (b) an aromatic diamino compound and (c) a dicarboxylic acid derivative to react in an organic solvent, thereby synthesizing a random copolymer precursor, and (ii) molding said block or random copolymer precursor by mold hot pressing at a temperature around a melting point of the soft chain fragment in the copolymer precursor, followed by internal mold heat treatment of said block or random copolymer precursor to induce a ring-closing reaction by elevating said temperature.
Dependencies are inferred from the claim text.