Novel Polymer Architectures
{'Code': '03070007', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
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The synthesis and characterization of macromolecules whose                 polymeric nature does not solely derive from direct covalent                    bonding of the repeat units will be carried out.  These                         materials, known as polyrotaxanes and polycatenanes, may be                     considered interpenetrating netwoks at the repeat unit                          (micromolecular) level.  However, because the units are not                     covalently bonded, but are like links in a chain, they may have a               large degree of independence from one another.  As such, they are               expected to have physical properties distinct from those of                     conventional polymers and copolymers.  Use in a broad range of                  applications may be envisioned for these two new classes of                     materials, including engineering materials.  In the latter case,                attainment of toughness through physical, rather than chemical,                 bonding should avoid the brittleness that plagues current highly                crosslinked polymeric systems used, for example, as matrixes for                composites.
{'FirstName': 'Harry', 'LastName': 'Gibson', 'PI_MID_INIT': 'W', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Harry W Gibson', 'EmailAddress': 'hwgibson@vt.edu', 'NSF_ID': '000164113', 'StartDate': '07/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Virginia Polytechnic Institute and State University', 'CityName': 'BLACKSBURG', 'ZipCode': '240603359', 'PhoneNumber': '5402315281', 'StreetAddress': '300 TURNER ST NW', 'StreetAddress2': 'STE 4200', 'CountryName': 'United States', 'StateName': 'Virginia', 'StateCode': 'VA', 'CONGRESSDISTRICT': '09', 'CONGRESS_DISTRICT_ORG': 'VA09', 'ORG_UEI_NUM': 'QDE5UHE5XD16', 'ORG_LGL_BUS_NAME': 'VIRGINIA POLYTECHNIC INSTITUTE & STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'M515A1DKXAN8'}
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{'Code': '1773', 'Text': 'POLYMERS'}
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