Diffusive Transport in Porous Polymers
{'Code': '07020000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CBET', 'LongName': 'Div Of Chem, Bioeng, Env, & Transp Sys'}}
{'SignBlockName': 'Robert M. Wellek'}
The controlled release of macromolecules from a porous polymer carrier          is an example of diffusion through a porous medium; a complete                  understanding of the behavior of these systems in not available.  A             microstructural approach to the problem will be taken with the goal of          elucidating the underlying physical mechanisms which determine the rate         of transport in the porous network.  The research involves a system for         acquiring detailed microstructural data on the porous polymer devices.          A detailed understanding permits the formulation of physically                  realistic models of the porous network; it will also provide a method           for testing preliminary hypotheses.  Release studies are also conducted         for examining the kinetics of macromolecular release from the polymer           devices.  The major thrust of the project is exploratory                        experimentation on the physical mechanisms.
{'FirstName': 'Robert', 'LastName': 'Langer', 'EmailAddress': 'rlanger@mit.edu', 'StartDate': '09/01/1986', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Massachusetts Institute of Technology', 'CityName': 'Cambridge', 'ZipCode': '021394301', 'PhoneNumber': '6172531000', 'StreetAddress': '77 MASSACHUSETTS AVE', 'CountryName': 'United States', 'StateName': 'Massachusetts', 'StateCode': 'MA'}
{'Code': '1414', 'Text': 'INTERFAC PROCESSES & THERMODYN'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1986&All=true', 'xml': '8611637.xml'}