Open AccessX‐ray irradiation induces local rearrangement of silica particles in swollen rubber
Author(s) -
Shinohara Yuya,
Yamamoto Naoko,
Kishimoto Hiroyuki,
Amemiya Yoshiyuki
Publication year - 2015
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577514022954
Subject(s) - irradiation , relaxation (psychology) , natural rubber , small angle x ray scattering , nanoparticle , dynamic light scattering , materials science , swelling , chemical engineering , chemical physics , scattering , chemistry , crystallography , composite material , physics , nanotechnology , nuclear physics , optics , psychology , social psychology , engineering
X‐ray photon correlation spectroscopy (XPCS) of swollen rubber containing spherical silica nanoparticles is reported. It is shown that irradiation by intense X‐rays leads to the breakdown of cross‐links, thereby inducing the local rearrangement of silica nanoparticles. This rearrangement process depends on the cross‐link density and is characterized by a compressed exponential relaxation with aging behaviour, which resembles a common feature of complex fluids observed with XPCS.