Multilayered structures comprising polycarbonate layers and functionalized polyamide layer

A multilayered bonded laminated structure comprising:

• (a) an aromatic polycarbonate resin layer;
• and
• (b) a polyamide resin layer exhibiting gas barrier properties, said polyamide resin comprising the reaction product of:
• (i) a dicarboxylic acid,
• (ii) a diamine, and
• (iii) an effective amount comprising at least about 3 mole percent of (iii) based on total moles of (ii) and (iii) of a polyamine of the general formula:
• ##STR11## wherein R.sub.6 and R.sub.7 are independently selected from aliphatic, aromatic, and unsaturated hydrocarbons and n is an integer of from 1 to 6, and m is an integer from 1 to 6 said polyamine containing an internal amine group which is less reactive than the terminal amine groups and said polyamine having a concentration greater than approximately 1% of the dicarboxylic acid concentration, based on total moles of dicarboxylic acid, said layers (a) and (b) being in direct adhesive contact with each other without the use of a tie layer therebetween.