Abstract
In this work, the mechanical and thermal properties of nanocomposite films prepared from the surface-initiated polymerization of norbornene mediated by a surface-bound ruthenium alkylidine catalyst were investigated. Thermal gravimetric and dynamic mechanical analyses revealed enhanced properties of the resulting nanocomposite films over that of the unfilled polymer.
Highlights
The silicate clay-based polymer nanocomposites derived from the use of an organically modified clay montmorillonite (MMT) mineral and other related materials have attracted a great deal of technological and scientific interest owing to the promise of greatly improved properties over those of the unfilled polymer
The researchers from the Toyota’s Central Research and Development Laboratories were the first to demonstrate in the 1980s that a substantial increase in the mechanical properties of a polyamide resin can be realized through reinforcing the nylon matrix with a silicate clay
To study the effect of the clay composition in the mechanical properties of the nanocomposites prepared by surface initiated ring opening metathesis polymerization (SI-ROMP), sample films of poly(norbornene) and clay-poly(norbornene) nanocomposites containing 5 % (C15Asil_PNB5) and 13 % organoclay (C15Asil_PNB13) were prepared using hot press
Summary
The silicate clay-based polymer nanocomposites derived from the use of an organically modified clay montmorillonite (MMT) mineral and other related materials have attracted a great deal of technological and scientific interest owing to the promise of greatly improved properties over those of the unfilled polymer. The researchers from the Toyota’s Central Research and Development Laboratories were the first to demonstrate in the 1980s that a substantial increase in the mechanical properties of a polyamide resin can be realized through reinforcing the nylon matrix with a silicate clay They successfully prepared a nylon-clay hybrid (NCH) that possessed improved mechanical and thermal properties – a higher modulus, an enhanced strength and a better heat distortion temperature – over the unfilled nylon (Kojima et al, 1994; Usuki et al, 1997; Usuki et al, 1995; Usuki et al, 1995; Yano et al, 1997; Yano et al, 1993). This confirms that the polymer chains are covalently attached to the clay The nanocomposites which were hot-pressed into thin films were prepared from this approach and in this work, their mechanical and thermal properties were compared to that of the free poly(norbornene)
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