Universal scattering behavior of coassembled nanoparticle-polymer clusters

作者:Fresnais J*; Berret J F; Qi L; Chapel J P; Castaing J C; Sandre O; Frka Petesic B; Perzynski R; Oberdisse J; Cousin F
来源:Physical Review E, 2008, 78(4): 040401.
DOI:10.1103/PhysRevE.78.040401

摘要

Water-soluble clusters made from 7-nm inorganic nanoparticles have been investigated by small-angle neutron scattering. The internal structure factor of the clusters was derived and exhibited a universal behavior as evidenced by a correlation hole at intermediate wave vectors. Reverse Monte Carlo calculations were performed to adjust the data and provided an accurate description of the clusters in terms of interparticle distance and volume fraction. Additional parameters influencing the microstructure were also investigated, including the nature and thickness of the nanoparticle adlayer.

  • 出版日期2008-10
  • 单位中国地震局