Dependence of Diffusive Permeation Selectivities and Rates  on Upstream and Downstream Pressures
{'Code': '07020000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CBET', 'LongName': 'Div Of Chem, Bioeng, Env, & Transp Sys'}}
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A theoretical model is being developed describing the effects of                upstream and downstream pressure on selectivity and rate of permeation          and pervaporation of multicomponent liquid mixtures through polymer             membranes.  The experimental results from two component systems are in          agreement with the model predictions, and confirm the expected                  influence of downstream pressure in pervaporation-type experiments.             Investigations are continuing on the selective permeation of                    water/ethanol in cellulose acetate membranes, including those very lean         in ethanol; interpenetrating-type polymer composite membranes; the              two-phase permeate region; permeant pairs with very large solubility            and/or diffusivity characteristics in the membrane; and the effects of          temperature.
{'FirstName': 'Edward', 'LastName': 'Thompson', 'PI_MID_INIT': 'V', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Edward V Thompson', 'EmailAddress': 'bousfld@maine.maine.edu', 'NSF_ID': '000114394', 'StartDate': '09/01/1985', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Maine', 'CityName': 'ORONO', 'ZipCode': '044695717', 'PhoneNumber': '2075811484', 'StreetAddress': '5717 CORBETT HALL', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Maine', 'StateCode': 'ME', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'ME02', 'ORG_UEI_NUM': 'PB3AJE5ZEJ59', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF MAINE SYSTEM', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1417', 'Text': 'Interfacial Engineering Progra'}
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