Polymeric Separation Media

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This volume is a eoLleetion of manuseripts based on presenta- tions at a symposium Polymerie Separation Media organized for the Seeond Chemieal Congress of the North Ameriean Continent held in Las Vegas, August 24-29, 1980. The symposium was organized to bring together researehers in the expanding field of separations based on polymerie media. A diverse eross-seetion of re.seareh areas were presented, whieh were linked by the aetive separation agent being a polymerie material. I would like to thank the authors for their endeavours and the audienee for their partieipation, espeeially in light of the late change of venue for this meeting. Finally I am indebted to the Division of Polymer Chemistry Ine. of the Ameriean Chemieal Soeiety for their sponsorship. Anthony R. Cooper, Ph.D., FRSC Palo Alto, California July 1981 v CONTENTS DEDICATION TO BAREND H. J. HOFSTEE …1 PART I TRANSPORT IN POLYMERIC MEDIA Some Condiserations Regarding the Hyperfi1teration of Organic Liquids. 7 I. J. Bass and P. Meares Measurement of Transport Interaction in Membranes …19 …K. S. Spiegier, T. S. Brun and A. Berg Free Vo1ume Estimates in Crysta11ine and Fi11ed Polymers …21 H. L. Frisch and A. I. Kreituss Diffusion Coefficients of Po1ystyrenes in Porous Gels From Mass Transfer Dispersion in Gel Permeation Chromatography …27 …