DYNAMICS OF THE SOL-GEL TRANSITION IN ORGANIC-INORGANIC NANOCOMPOSITES

被引：27

作者：

JUDEINSTEIN, P ^{[1
]}

OLIVEIRA, PW ^{[1
]}

KRUG, H ^{[1
]}

SCHMIDT, H ^{[1
]}

机构：

[1] UNIV SAARLAND,INST NEUE MAT,W-6600 SAARBRUCKEN,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 220卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(94)00142-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two different techniques have been used to follow the gelation of photochromic organic-inorganic nanocomposites. The variations of molecular and macromolecular motions in these complex systems have been analyzed. Photo-correlation spectroscopy probes the formation of the gel network. Forced Rayleigh scattering experiences the microstructure of the mixtures via the measurement of the translational diffusion coefficient of entrapped photoreactive targets. In the different mixtures, a drop of the network mobility could be observed around the sol to gel conversion, while the entrapped molecules do not experience the macroscopic transition.

引用

页码：35 / 39

页数：5

共 18 条

[1] SOL-GEL-XEROGEL EVOLUTION INVESTIGATED BY ELECTROACTIVE PROBES IN SILICA AND TRANSITION-METAL OXIDE BASED GELS [J].