| 摘要 |
PURPOSE:To obtain the title molding having a high modulus of elasticity and being excellent in heat resistance, strength and moldability, by molding a specified diacetylene group-containing 1,3-substituted aromatic polyamide. CONSTITUTION:An amine (a) of formula I (wherein X and X' are each H, a 1-20C hydrocarbyl or a carbonyl, sulfonyl, or the like bonded to this group and R and R' are each a 1-20C bivalent aromatic hydrocarbon group bonded in positions 1 and 3 to the amide group and the diacetylene group, respectively) is dissolved in an aqueous alkali solution, and the formed solution is mixed with a water-insoluble organic solvent solution of 0.1-2 equivalent of a carboxylic acid halide of formula II (wherein A is a halogen and Z is a 1-20C bivalent hydrocarbol group), a carboxylic ester of formula III (wherein B is a hydrocarbyl group) or a carboxylic acid of formula IV. The mixed solution is reacted at -20-300 deg.C for 20min-10hr to obtain a diacetylene group- containing 1,3-substituted aromatic polyamide having repeating units of formula V (degree of polymerization >=2). This polyamide is molded into a molding having any desired shape and a modulus of elasticity >=6 GPa. |
