Novel copolymers of poly(ether sulfone) (PES) containing ring trifluoromethyl groups have been synthesized by starting from trifluoromethyl aryl sulfone monomers. Materials incorporating CF 3 groups ortho to the ether bond have low molecular weights due to the instability of the CF 3 group in the polymerization process. Higher-molecular-weight materials, involving CF 3 groups ortho to the sulfone group, can be prepared: these materials show a number of modified properties when compared to PES, such as crystallinity and a lower uptake of water, although they are also somewhat less thermally stable
Посилання на статтю:
Trifluoromethylated poly(ether sulfone)s / James H. Clark* and James E. Denness // Polymer. – 1994. – Vol 35. – P. 2432-2437.