Preparation of a polyamide from lactam, ammonium salt of unsaturated acid and unsaturated nitrile

摘要

This invention relates to a new process for preparing a copolyamide comprising polymerizing an alpha, beta-unsaturated nitrile and water with a molar excess of a lactam. In one embodiment, acrylonitrile, water and caprolactam are polymerized to form a nylon-3,6.