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Novel analytical approaches for studying degradation in polypropylene and propylene-1-pentene copolymers
(Stellenbosch : University of Stellenbosch, 2006-03)
Commercial polyolefins degrade under the influence of light, heat, chemical and mechanical factors. They are therefore stabilised to ensure that they maintain performance characteristics during their service life. Degradation ...
New monomer for hydrophobic acrylic copolymers and their novel properties
(Stellenbosch : University of Stellenbosch, 2006-12)
The synthesis and characterization of a new tertiary alcohol (2-octyl-2-dodecanol) and “bushy-tailed”, hydrophobic acrylic monomer (2-octyl-dodecyl acrylate) from a 1-decene dimer (2-octyl-1-dodecene) precursor that was ...
Structure/property relationships of commercial propylene/1-pentene random copolymers
(Stellenbosch : University of Stellenbosch, 2006-03)
Propylene/1-pentene random copolymers are a relatively new family of random copolymers being prepared by Sasol Polymers and reveals high impact strength, good tensile properties, excellent optical properties, good rheological ...
Synthesis of acrylate-based polymeric and polymerisable surfactants and their application in the emulsion polymerisation of styrene
(Stellenbosch : University of Stellenbosch, 2006-03)
The study described in this dissertation examines the synthesis of mainly acrylate-based surfactants and their subsequent use as emulsifiers/stabilisers in the emulsion polymerisation of styrene. Some acrylamide-based ...