“…This represents a portion of the polymer chain; the proportions of BW 245C and vinyl monomer units are [5) [12] to the urethane linkages and used as free radical sources (with the aid of the metal carbonyl processes already outlined) (18,19) to graft on the BW 245C-monomer ( [5], n=1) and DI MA [11] and many other species. Interesting monomers [14], [15], have been prepared from several a-amino acids and also from amino sugars, e.g. glucamine, by reacting these compounds with [13].…”