Composites of poly(methyl methacrylate) synthesized by the free-radical polymerization of methyl methacrylate with Aerosol OT (AOT) surfactant added show enhanced resistance to thermal degradation and combustion. Structural analyses over the nm and μm lengthscale show that there are nanoscale domains of hexagonally packed rods and microscale domains of phase-separated surfactant. The self-assembly of AOT occurs concurrently with the combustion resistance. These results show a promising method of introducing structures that result in the desirable properties of thermal stability and combustion resistance into polymer composites.
- Gregory N Smith
- James E Hallett
- Julian Eastoe