Foam materials and high internal phase emulsions made using oxidatively stable emulsifiers

A polymeric foam material prepared by polymerizing and crosslinking an emulsion with a high percentage of internal phase, the emulsion comprising: 1) an oil phase comprising: a) from 85 to 99% by weight of a monomer component capable of forming a co-polymer having a Tg value below 90 ° C, the monomer component comprising: i) from 5 to 80% by weight of a monofunctional monomer, substantially water insoluble, capable of forming a polymer having a Tg of 35 ° C or less; ii) 0 to 70% by weight of a substantially insoluble monofunctional comonomer in water; iii) from 5 to 80% by weight of a first agent, substantially water insoluble polyfunctional crosslinking; b) 1 to 20% by weight of an emulsifier of an alkenyl succinate derivative which is soluble in the oil phase, said emulsifier being characterized by comprising the partially dehydrated reaction product.