Investigation of Local Segmental Dynamics in Polymers
{'Code': '03070007', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
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The local segmental dynamics of polyisoprene and polystyrene will               be investigated using three complementary and interactive                       techniques.  Time-resolved optical spectroscopy will be used to                 observe directly the orientation autocorrelation function                       associated with a backbone bond in anthracene-labeled chains.                   C-13 NMR experiments at a range of temperatures and Larmor                      frequencies will be used to access some information about the                   correlation function associated with local dynamics in unlabeled                polymers.  Brownian dynamics computer simulations will provide                  quantitative predictions for both experiments, and new                          qualitative insights into the detailed mechanisms of local                      motions.  Together these techniques will address the relationship               between molecular structure and local dynamics, the role of the                 solvent environment in local motions, and the connection between                local and global polymer motions.
{'FirstName': 'Mark', 'LastName': 'Ediger', 'PI_MID_INIT': 'D', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Mark D Ediger', 'EmailAddress': 'ediger@chem.wisc.edu', 'NSF_ID': '000407225', 'StartDate': '04/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Wisconsin-Madison', 'CityName': 'MADISON', 'ZipCode': '537151218', 'PhoneNumber': '6082623822', 'StreetAddress': '21 N PARK ST STE 6301', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Wisconsin', 'StateCode': 'WI', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'WI02', 'ORG_UEI_NUM': 'LCLSJAGTNZQ7', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF WISCONSIN SYSTEM', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '177300', 'Text': 'POLYMERS'}
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