B. Gupta et al., PROTON-EXCHANGE MEMBRANES BY RADIATION GRAFTING OF STYRENE ONTO FEP FILMS .2. MECHANISM OF THERMAL-DEGRADATION IN COPOLYMER MEMBRANES, Journal of applied polymer science, 51(9), 1994, pp. 1659-1666
The thermal degradation of radiation-grafted and sulfonated FEP-g-poly
styrene membrane has been investigated in the temperature range 50-650
degrees C in an inert gas atmosphere by thermogravimetry. The evolved
gaseous products were analyzed by FTIR in combination with mass spect
rometry to correlate weight losses at different temperatures with mole
cular composition of the copolymer membrane. On the basis of these res
ults, a simple degradation model has been established. (C) 1994 John W
iley and Sons, Inc.