Title

A Carbocation Substituted Clay and its Styrene nanocomposite

Document Type

Article

Publication Date

2004

Source Publication

Polymer Degradation and Stability

Abstract

A substituted tropylium ion can be ion-exchanged onto montmorillonite to give a novel organically-modified clay. One can prepare a polystyrene nanocomposite of this clay by emulsion, but not bulk, polymerization. This is the first example of a clay that contains a carbocation and its use to prepare a polymer-clay nanocomposite. Both the clay and its nanocomposites exhibit outstanding thermal stability. Characterization by X-ray diffraction, transmission electron microscopy, cone calorimetry, thermogravimetric analysis and the evaluation of mechanical properties shows that a mixed intercalated-exfoliated nanocomposite is obtained.

Comments

Polymer Degradation and Stability, Volume 83, Issue 2, pp 301-307 (February, 2004). DOI: 10.1016/S0141-3910(03)00275-1