Polymerisation of a Series of Vinyl Monomers in Wool

Abstract

A series of acrylates and methacrylates were polymerised in wool by free‐radical initiation from aqueous methyl alcohol. A direct relationship was observed between the hardness of the polymer and its effect on the elastic properties of single fibres; the harder polymers increase the work of extension, whilst the softer polymers decrease it. Some surface deposition occurs and increases the frictional properties of the fibres, again in correlation with the hardness of the polymer. Polymethyl methacrylate gives a satisfactory degree of washing shrinkage control, but large quantities are required; the effect is probably due mainly to surface deposition of excess of polymer.