P. Peter Shang is a research associate at the Pharmaceutical Formulations Laboratory, Eastman Chemical Company, Kingsport, TN 37662, tel. 423.229.2374, fax 423.224.0414.
Effects of Polyethylene Glycol on Morphology, Thermomechanical Properties, and Water Vapor Permeability of Cellulose Acetate-Free Films
The authors provide a systematic evaluation of the effects of solvent systems, PEG molecular weight, and concentration of CA to PEG on the thermomechanical properties and permeabilities of CA-free films.