Victrex polyethersulfone was nitrated efficiently and controllably on its deactivated aromatic ring with a mixture of ammonium nitrate and trifluoroacetic anhydride. The products were characterized by elemental analysis and IR spectroscopy, their thermal properties were investigated by TGA and DSC methods. A comparison is made between this procedure and the analogous nitration of Udel polysulfone.
Посилання на статтю:
Polymer Communication Nitration of polyethersulfone by ammonium nitrate and trifluoroacetic anhydride / András Botvay, Árpád Máthé, László Pöppl // Polymer. – 1999. – N 40. – P. 4965–4970.