Research on a New Process to Fractionate Polymers
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{'SignBlockName': 'Ritchie B. Coryell', 'PO_EMAI': None, 'PO_PHON': None}
Supercritical fluid solvents which exhibit pressure-dependent                   dissolving power will be investigated for the fractionation of                  refractory polymers whose performance characteristics can be enhanced           markedly if the molecular weight ranges can be narrowed.  In the Phase          I research, functionally-terminated polysiloxanes, polysilanes, and             functionally-terminated perfluoroalkylpolyether polymers used as high           performance surfactants, photo-resists, and liquid crystal precursors           and considerably lower polydispersities were achieved by supercritical          fluid fractionation.  Additional polymers of interest will be                   identified in phase II and a continuous fractionation process for these         polymers will be developed.  For polymers of particular interest,               distribution coefficients of various polymer fractions between the feed         solvent and the supercritical extraction fluid also will be measured.           These coefficients will be useful for the design of future commercial           plymer fractionation processes.
{'FirstName': 'Val', 'LastName': 'Krukonis', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Val Krukonis', 'EmailAddress': None, 'PI_PHON': None, 'NSF_ID': '000294913', 'StartDate': '10/01/1986', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Phasex Corporation', 'CityName': 'Lexington', 'ZipCode': '021731923', 'PhoneNumber': '5087948686', 'StreetAddress': '287 Emerson Road', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Massachusetts', 'StateCode': 'MA', 'CONGRESSDISTRICT': '07', 'CONGRESS_DISTRICT_ORG': 'MA07', 'ORG_UEI_NUM': None, 'ORG_LGL_BUS_NAME': None, 'ORG_PRNT_UEI_NUM': None}
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{'Code': '5373', 'Text': 'SBIR Phase II'}
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