TY - JOUR
T1 - Brillouin and Umklapp scattering in polybutadiene
T2 - Comparison of neutron and x-ray scattering
AU - Sokolov, A. P.
AU - Buchenau, U.
AU - Richter, D.
AU - Masciovecchio, C.
AU - Sette, F.
AU - Mermet, A.
AU - Fioretto, D.
AU - Ruocco, G.
AU - Willner, L.
PY - 1999
Y1 - 1999
N2 - We report a comparison of high resolution inelastic x-ray Brillouin scattering to coherent inelastic neutron scattering for amorphous deuterated polybutadiene, done for one temperature in the glass phase and another one in the melt. The x-ray scattering proves to be by far the better technique for such a polymer within its present resolution bounds. The neutron scattering allows one to extend these measurements to a much better resolution, showing an additional quasielastic signal in the melt. The results suggest x-ray measurements at higher momentum transfer, to see whether they are complementary to neutrons.
AB - We report a comparison of high resolution inelastic x-ray Brillouin scattering to coherent inelastic neutron scattering for amorphous deuterated polybutadiene, done for one temperature in the glass phase and another one in the melt. The x-ray scattering proves to be by far the better technique for such a polymer within its present resolution bounds. The neutron scattering allows one to extend these measurements to a much better resolution, showing an additional quasielastic signal in the melt. The results suggest x-ray measurements at higher momentum transfer, to see whether they are complementary to neutrons.
UR - http://www.scopus.com/inward/record.url?scp=0000224858&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.60.R2464
DO - 10.1103/PhysRevE.60.R2464
M3 - Article
C2 - 11970177
AN - SCOPUS:0000224858
SN - 1063-651X
VL - 60
SP - R2464-R2467
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 3
ER -