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Kinetic and mechanistic features of nitroxide mediated (co)polymerization
(Stellenbosch : University of Stellenbosch, 2011-03)
Please refer to full text to view abstract.
Impact of molecular structure on water vapour sorption properties in nanostructured polymeric films
(Stellenbosch : Stellenbosch University, 2011-12)
ENGLISH ABSTRACT: In this study, the use of surfactants, plate-like clays, organophilic molecules and side-chain
crystallinity was investigated for their impact on the transport mechanisms of water vapour
through polymer ...
Electrospun antimicrobial and antibiofouling nanofibres
(Stellenbosch : Stellenbosch University, 2011-12)
ENGLISH ABSTRACT: The main objective of this study was to develop electrospun nanofibres with both antimicrobial and antibiofouling properties for possible application in water filtration. To do this, two routes were ...
Preparation of polymer-clay nanocomposites via dispersion polymerization using tailor-made polymeric surface modifiers
(Stellenbosch : Stellenbosch University, 2011-12)
ENGLISH ABSTRACT: Fully exfoliated polystyrene-clay nanocomposites were prepared via free radical polymerization in dispersion polymerization, in a mixture of ethanol and water. Sodium montomorillonite clay (MMT) was ...
Molecular weight effects on crystallization of polypropylene
(Stellenbosch : University of Stellenbosch, 2011-03)
ENGLISH ABSTRACT: The crystallization of polyolefins is an important parameter in determining the properties of
such materials. The crystallization phenomenon generally depends on the molecular
symmetry (tacticity) and ...
Free volume properties of semi-crystalline polymers
(Stellenbosch : University of Stellenbosch, 2011-03)
ENGLISH ABSTRACT: Positron annihilation lifetime spectroscopy (PALS) is well established as a novel method
currently available for the study of polymers at a molecular level because of its sensitivity
to the microstructural ...
Novel electrospun fibres of amphiphilic organic-inorganic graft copolymers of poly(acrylonitrile)-graftpoly( dimethylsiloxane) for silicone composite reinforcement
(Stellenbosch : Stellenbosch University, 2011-12)
ENGLISH ABSTRACT: Novel silicone nanocomposites were prepared using poly(acrylonitrile) (PAN) based reinforcing
fibres as well as multi-walled carbon nanotubes (MWCNTs). Compatibility of the fibre fillers with
the silicone ...