Studies of Asymmetric Membrane Formation
{'Code': '07020000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CBET', 'LongName': 'Div Of Chem, Bioeng, Env, & Transp Sys'}}
{'SignBlockName': 'Charles Alexander Garris, Jr.', 'PO_EMAI': None, 'PO_PHON': None}
The program consists of a series of studies aimed at a basic                    understanding of the mechanisms controlling the formation of                    asymmetric membrane structures by the phase inversion method.                   An important aspect of the experimental program will be to                      develop optical techniques for measuring mass transfer rates and                solvent-nonsolvent flux ratios during film quenching.  Such data                will be used in conjunction with a recently developed mass                      transfer model to both predict and correlate the nature of the                  phase separation processes during film precipitation. Experiments               will be carried out on crystallizable and non-crystallizable                    membrane forming systems under a variety of quench bath                         conditions.  A series of studies of the gelation mechanisms will                also be carried out using DSC and falling-ball methods.  These                  will be combined with analyses of the ternary (polymer, solvent,                nonsolvent) phase diagram to evaluate the effects of possible                   transitions leading to gelation.  Finally improvements and                      extensions of our model for the quench period will be undertaken                to develop models of the simultaneous mass transfer-phase                       separation processes leading to the asymmetric structures.                                                                                                      The basic understanding obtained in the program would provide                   building blocks for achieving improved, engineered membranes with               superior, tailored separation properties.
{'FirstName': 'Anthony', 'LastName': 'McHugh', 'PI_MID_INIT': 'J', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Anthony J McHugh', 'EmailAddress': None, 'PI_PHON': '6107584260', 'NSF_ID': '000275593', 'StartDate': '04/15/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Illinois at Urbana-Champaign', 'CityName': 'URBANA', 'ZipCode': '618013620', 'PhoneNumber': '2173332187', 'StreetAddress': '506 S WRIGHT ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Illinois', 'StateCode': 'IL', 'CONGRESSDISTRICT': '13', 'CONGRESS_DISTRICT_ORG': 'IL13', 'ORG_UEI_NUM': 'Y8CWNJRCNN91', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF ILLINOIS', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '1417', 'Text': 'Interfacial Engineering Progra'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8721694.xml'}