Interphase Partitioning in Multiconstituent Polymer Systems
{'Code': '03070007', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
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In multiconstituent polymers there exists a driving force                  for the lowest energy constituent to preferentially adsorb at the               surface, or for a surfactant-like species to preferentially                     reside at a polymer-polymer interphase.  The occurrence of this                 interphase partitioning can drastically alter the surface and/or                interfacial properties of multicomponent polymers, and is the                   basis of many commercial methods for surface property                           modification.  This research represents a comprehensive effort to               understand the fundamental principles underlying these phenomena                by thorough experimentation on several model systems.  These                    include miscible homopolymer blends, immiscible ternary                         homopolymer/homopolymer/block copolymes blends, functionally                    terminated homopolymers, and immiscible blends of functionally                  terminated homopolymer with a second homopolymer.                               Characterization of the surface tension, and surface chemical                   structure and composition is accomplished by application of a                   number of current surface and interface analysis techniques in                  order to relate these features to the bulk physical and                         thermodynamic parameters of the constituents.  The availability                 of this information will assist in the molecular design of                      surface and interfacial modifiers for multiconstituent polymers.
{'FirstName': 'Jeffrey', 'LastName': 'Koberstein', 'PI_MID_INIT': 'T', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Jeffrey T Koberstein', 'EmailAddress': 'jk1191@columbia.edu', 'NSF_ID': '000338088', 'StartDate': '03/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Connecticut', 'CityName': 'STORRS', 'ZipCode': '062699018', 'PhoneNumber': '8604863622', 'StreetAddress': '438 WHITNEY RD EXTENSION UNIT 11', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Connecticut', 'StateCode': 'CT', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'CT02', 'ORG_UEI_NUM': 'WNTPS995QBM7', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF CONNECTICUT', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '177300', 'Text': 'POLYMERS'}
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