A method based on in situ steady-state fluorescence (SSF) measurements
is introduced for studying swelling processes in gels formed by free
radical cross-linking copolymerization (FCC) of methyl methacrylate (M
MA) and ethylene glycol dimethacrylate (EGDM) in toluene. Cooperative
diffusion coefficients (D-c) were measured and found to be around 10(-
6)cm(2)/s for gels swollen in toluene.