CARBOXYLIC ANHYDRIDE GROUPS AND CARBOXYLI C-ACID GROUPS IN POLYAMIDE MELTS-P PART 2 - TRANSFER OF THE DECOMPOSITION MECHANISM TO SO-CALLED MACROMOLECULAR DECOMPOSITION AGENTS FOR THE FORMATION OF GRAFT-COPOLYMERS

Carboxylic acid groups show a surprisingly high reactivity under polya mide melt conditions. During melt processing of polyamide 6 with acryl ic acid grafted polyolefines, acrylic acid grafted EVA copolymers as s o-called high molecular weight decomposition agent were specially stud ied, a coupling reaction by a random transamidation reaction of the ac rylic acid groups with the polyamide chains could be shown. The result s are discussed in comparison to mechanisms published in the literatur e.