GAS BARRIER POLYMER GAS BARRIER FILM AND GAS BARRIER LAMINATE

摘要

The gas-barrier polymer of the present invention is formed by heating a mixture containing a polycarboxylic acid and a polyamine compound. In the infrared absorption spectrum of the gas-impermeable polymer, the ratio of the absorption band of 1493 cm ^-1 to 1780 cm ^-1 the entire peak area by a, and the absorption band is at least 1598cm ^-1 or more when the entire peak area in a range of 1690cm ^-1 to less than B, the area ratio of the amide bond represented by B / a 0.370.