Inelastic neutron scattering of perdeuterated cellulose
ORAL
Abstract
Perdeuterated cellulose has been prepared by feeding acetobacters with deuterated glycerol, and measured inelastic neutron scattering with planar orientation to obtain the elastic tensor. Perdeuteration allows for the measurement of anisotropic inelastic scattering spectra with low background compared to the hydrogenated one, which has high incoherent scattering depriving of structural information. Acoustic branch is observed around elastic line of 2 0 0 reflection, perpendicular to the pyranose ring, whereas not along the chain direction. The data are analyzed and discussed in the context of intrinsic structure factors of natural cellulosic material as well as the constraints in specimen preparation and measurement techniques.
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Presenters
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Howard Wang
University of Maryland, College Park
Authors
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Howard Wang
University of Maryland, College Park
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Yoshiharu Nishiyama
Université Grenoble Alpes
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Xin Zhang
University of Maryland, College Park
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Robert M Briber
Materials Science and Engineering, University of Maryland, College Park, University of Maryland, College Park
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robert russell
National Deuteration Facility, ANSTO
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Siqian Chen
Dept Food Science and Engineering, Dongguan University of Technology
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Yanjun zhang
Neutron Science Platform, Songshan Lake Materials Laboratory