http://homepage.ntu.edu.tw/~ntuipse/File/Polymer,%20593-601%20(2003).pdf

Synthesis and characterization of organic–inorganic hybrid thin films from poly(acrylic) and monodispersed colloidal silica

Transparent poly(methyl methacrylate)/silica/zirconia nanocomposites with excellent thermal stabilities

Approaches to the preparation of organic–inorganic nanocomposites are considered from a unified viewpoint for the first time. The major problems in the development of this new line of research in materials technology, which has arisen on the border of the science of polymers, colloid chemistry and physical chemistry of the ultradisperse state, are discussed. The main methods for the formation of composite materials and polymer–inorganic cross-linked hybrids with interpenetrating networks are analysed. Primary attention is given to sol-gel procedures for their preparation, including template processes, which occur under conditions of strict stereochemical orientation of reactants, intercalation of monomers and polymers into porous and layered matrices and their intracrystalline and post-intercalation transformations. Methods for the synthesis and properties of metallopolymeric polymolecular Langmuir–Blodgett films, which are peculiar supramolecular ensembles incorporating nanosized metal-containing particles, are discussed. The generality of the processes of formation of organic–inorganic nanocomposites in living and nonliving natural objects is demonstrated and the major fields of application of nanocomposites are considered. The bibliography includes 566 references.

https://iopscience.iop.org/article/10.1070/RC2000v069n01ABEH000506/pdf

Hybrid polymer-inorganic nanocomposites

Phase structure and mechanical and adhesion properties of epoxy/silica hybrids

Optically transparent organic–inorganic hybrid coating materials have been prepared by a sol–gel process. Four different types of the coating material produced by TWI in Cambridge, UK using the patented Vitresyn® method, all identical in terms of the starting materials, but differing in terms of their relative proportions, have been examined. Tetraethoxysilane was used as the primary inorganic precursor and urethane acrylate was used as the source of the organic component. 3-(Trimethoxysilyl)propyl methacrylate was used as both a secondary inorganic source and a silane coupling agent to improve the compatibility of the organic and inorganic phases. The degree of chemical interaction of the organic and inorganic phases after processing was determined by 29Si and 13C nuclear magnetic resonance and Fourier transform infrared spectroscopy. The effect of the relative amount of inorganic starting component in these hybrid materials on their thermal properties was investigated through differential scanning calorimetry and thermogravimetric analysis. Similar degrees of chemical interaction between the organic and inorganic phases were found in all four samples. T3, Q3 and Q4 are the main cross-linking network structures in these hybrid systems, the relative proportions of which are determined by the relative proportions of the starting materials.

Zhi Hua Huang

Papers

The effects of interactions on the properties of acrylic polymers/silica hybrid materials prepared by the in situ sol-gel process