CRYSTALS MADE OF CLOSE-PACKED POLYMERIC SPHERES - A NEUTRON-SCATTERING STUDY ON LATEX FILMS

被引：39

作者：

RIEGER, J ^{[1
]}

HADICKE, E ^{[1
]}

LEY, G ^{[1
]}

LINDNER, P ^{[1
]}

机构：

[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.68.2782

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dense packing of polymeric spheres in latex films has been investigated by means of small-angle neutron scattering. The films were prepared by evaporation of the water out of a dispersion consisting of monodisperse charged particles (diameter 130 nm). Analysis of the Bragg peaks found in the scattering data reveals that the particles are arranged in a face-centered-cubic lattice structure with well defined crystalline domains. Furthermore, it is found that the system still owns memory about its initial structure upon prolonged annealing at temperatures far above its glass temperature. An interesting suppression of some Bragg peaks due to the influence of the particle scattering form factor is observed.

引用

页码：2782 / 2785

页数：4

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