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Title: Short range order in amorphous polycondensates

Conference ·
OSTI ID:10188215
; ;  [1]; ;  [2];  [3];  [4]
  1. Forschungszentrum Juelich GmbH (Germany). Inst. fuer Festkoerperforschung
  2. Bayer AG, Leverkusen (Germany)
  3. Oak Ridge National Lab., TN (United States)
  4. Brookhaven National Lab., Upton, NY (United States)

The static coherent structure factors S(Q) of the polymer glass Bisphenol-A-Polycarbonate and its chemical variation Bisphenol-A- Polyctherkctone- both in differently deuterated versions- have been measured by spin polarized neutron scattering. The method of spin polarization analysis provided an experimental separation of coherent and incoherent scattering and a reliable intensity calibration. Results are compared to structure factors calculated for model structures which were obtained by ``amorphous cell`` computer simulations. In general reasonable agreement is found between experiment and simulation; however, certain discrepancies hint at an insufficient structural relaxation in the amorphous cell method. 15 refs, 1 fig, 1 tab.

Research Organization:
Oak Ridge National Lab., TN (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC05-84OR21400; AC02-76CH00016
OSTI ID:
10188215
Report Number(s):
BNL-48108; CONF-920995-1; ON: DE93001650
Resource Relation:
Conference: Determination of partial structure factors of disordered matter by neutron and anomalous x-ray diffraction,Grenoble (France),10-11 Sep 1992; Other Information: PBD: [1992]
Country of Publication:
United States
Language:
English