Ageing of solid state photo crosslinked starch based films
Résumé
A new family of crosslinked starch was synthesised in the solid state by UV irradiation without the use of any crosslinking agent. The original photosensitiser used was sodium benzoate. Although the final crosslinking density is relatively low, it is still sufficient to render starch nearly insoluble and to modify the "ageing" behaviour. Physical ageing (at T