Quasielastic Neutron Scattering Study on Polymer Nanocomposites

1st Conference on Light and Particle Beams in Materials Science 2013

物理学;材料科学

Masui, T.^1 ; Kishimoto, H.^1 ; Kikuchi, T.^2 ; Ohira-Kawamura, S.^2 ; Inamura, Y.^2 ; Koga, T.^3 ; Nakajima, K.^2

Material Research and Development HQ, Sumitomo Rubber Industries Ltd., 2-1-1 Tsutsui-cho, Kobe, Chuo-ku, Hyogo 651-0071, Japan^1

J-PARC Center, Japan Atomic Energy Agency, Tokyo, Ibaraki 319-1195, Japan^2

Department of Materials Science and Engineering, Stony Brook University, Stony Brook NY 11794-2275, United States^3

关键词: Damped vibrations;    Diffusion motion;    Dynamical features;    Microscopic dynamics;    Polymer nanocomposite;    Quasi elastic neutron scattering;    Residence time;    Silica particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/502/1/012057/pdf
DOI  :  10.1088/1742-6596/502/1/012057

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

By using a quasielastic neutron scattering technique (disk-chopper-type spectrometer AMATERAS at J-PARC), we have investigated the microscopic dynamics of polybutadiene (PB) in which silica particles were embedded. The experimental results gave us both a damped vibration mode of PB and jumped diffusion motion of the segments. It was found that these dynamical features remain unaffected by the presence of the silica particle, while the residence time of the jumped diffusion motion becomes longer at the high filler loading.