WATER BASED GRAFTING

摘要

A process for the preparation of a monomer-grafted cross-linked polymer comprising the steps of: i) activating the polymer by irradiation; ii) quenching the activated polymer so as to effect cross-linking therein; iii) activating the cross-linked polymer by irradiation; iv) contacting the activated cross-linked polymer with an emulsion which comprises: a) an unsaturated monomer; b) an emulsifier; and c) water, for a time sufficient t o effect the desired extent of grafting.