Neutron Scattering of Polymers
{'Code': '03070007', 'Directorate': {'Abbreviation': 'MPS', 'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'Abbreviation': 'DMR', 'LongName': 'Division Of Materials Research'}}
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This is a research program designed to study polymer blends and                 polymer networks by scattering methods.  The main experimental                  thrust will continue to be small-angle neutron scattering (SANS),               and will be extended to include comparative and complementary                   small-angle x-ray (SAXS) measurements.  The polymer blends will                 be studied by SANS and SAXS, and both equilibrium properties and                polymer interdiffusion are to be investigated.  Polymer networks                in bulk and in the swollen state will be studied by SANS only.                  Concurrently, elastic recoil scattering (ERD) will be exploited                 for the measurement of polymer interdiffusion and solvent                       diffusion in bulk polymers.  Preliminary SAXS measurements and                  all ERD measurements will be performed at the University of                     Michigan.  SAXS measurements requiring high resolution and high                 intensity will be carried out at Brookhaven or Standford.  Most                 SANS experiments are planned to be executed at Oak Ridge but some               may be undertaken at the University of Missouri or at Argonne.                                                                                                  All three scattering methods SANS, SAXS, and ERD are particularly               important in the measurement of small diffusion constants of the                order of 10-14 cm2/sec and less. An important part of the ERD                   study will be to improve instrumental resolution and to provide a               low temperature central system needed for the solvent diffusion                 studies.
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{'Code': '1773', 'Text': 'POLYMERS'}
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