Proton Multiple Quantum NMR Studies of Space and End Chain  Conformation in Liquid Crystals
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{'SignBlockName': 'David Nelson', 'PO_EMAI': None, 'PO_PHON': None}
The problem of the conformation and ordering of flexible chains                 in anisotropic phases has attracted a good deal of attention in                 recent years.  The motivation of most of this work is a desire to               understand the manner in which alkyl chains pendant to aromatic                 cores influence mesomorphic phase properties and stability.                     Liquid crystal polymers have also been the subject of research as               possible sources of high tensile strength fibers and coatings,                  and for their possible applications in electro-optic devices.                   Although polymers with rigid backbones do not generally form                    liquid crystalline phases, or decompose before melting into                     memorphic phases, the introduction of flexible spacer chains into               the polymer backbone will lower mesophase transition temperatures               to below the range of thermal decomposition.  Deuterium NMR                     spectroscopy has been the principal tool for probing the                        microscopic structure and dynamics of end and spacer chains, and                for testing models of chain ordering in nematic phases.                         Professor Drobny proposes an approach to studying spacer and end                chain ordering in the nematic phase and in several in low                       temperature  mesophases using multiple quantum spectroscopy.                    Rather than test models of chain ordering and conformation,                     conformational probabilities and order tensor elements will be                  directly calculated from proton-proton and proton-carbon dipolar                couplings obtained from multiple quantum spectra.
{'FirstName': 'Gary', 'LastName': 'Drobny', 'PI_MID_INIT': 'P', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Gary P Drobny', 'EmailAddress': 'drobny@chem.washington.edu', 'NSF_ID': '000438552', 'StartDate': '06/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Washington', 'CityName': 'SEATTLE', 'ZipCode': '981951016', 'PhoneNumber': '2065434043', 'StreetAddress': '4333 BROOKLYN AVE NE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Washington', 'StateCode': 'WA', 'CONGRESSDISTRICT': '07', 'CONGRESS_DISTRICT_ORG': 'WA07', 'ORG_UEI_NUM': 'HD1WMN6945W6', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF WASHINGTON', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1762', 'Text': 'SOLID STATE & MATERIALS CHEMIS'}
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