PROCESS FOR THE PREPARATION OF GRAFTED POLYMERS OF ALPHA-SUBSTITUTED-BETA- PROPIOLACTONE ON AMORPHOUS BASE POLYMERS

摘要

CASE 1221 PROCESS FOR THE PREPARATION OF CRAFTED POLYMERS OF ALPHA- SUBSTITUTED- BETA- PROPIOLACTONE ON AMORPHOUS BASE POLYMERS A method is disclosed for preparing graft polymers of alpha-substituted-beta-propiolactones, comprising the step of providing anionic sites in an amorphous base polymer and reacting the anionic compound with an alpha -substituted-beta-propiolactone. Critical concentrations of unsaturation in the base polymer and critical quantities of the beta-propiolactone concerned are indicated.