The University of Waterloo

Costas Tzoganakis

Hauke Malz

Branched copolymers of polypropylene (PP) and polysilanes are prepared by procedures involving melt phase hydrosilylation. Such branched copolymers may be formed in situ during the melt phase hydrosilylation or may be prepared by subsequent processing. The branched copolymers exhibit superior properties.

Melt phase hydrosilylation of polypropylene

Hydrosilylation of polypropylene

The surface roughness of an extruded polymeric material is determined by forming a digital image of the extruded surface of the polymeric material and then determining the fractal dimension of any surface distortions of the extruded surface from the digital image. The fractal dimension is a measure of surface roughness and is dimensionless. A value of one indicates a smooth surface, while higher values indicated degrees of roughness. This information may be used to adjust molding conditions to avoid the formation of surface roughness.

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Kitchener, Canada

Costas Tzoganakis