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Now showing items 21-30 of 71
Polypropylene/filler nanocomposites by melt compounding and in situ polymerization
(Stellenbosch : University of Stellenbosch, 2010-12)
ENGLISH ABSTRACT: The properties of polymer nanocomposites depend greatly on the
chemistry of the polymer matrices, the nature of the nanofillers, and the way in
which they are prepared. Understanding the synthesis–str ...
Synthesis, properties and analysis of polydadmac for water purification
(Stellenbosch : Stellenbosch University, 2008-03)
ENGLISH ABSTRACT: This study concerns the synthesis, properties and quantitative analysis of polydiallyldimethylammonium chloride (polyDADMAC), a water-soluble polymer used world-wide for potable water purification. The ...
Novel α-olefin polymer systems
(Stellenbosch : Stellenbosch University, 2005-03)
ENGLISH ABSTRACT:
See fulltext for abstract
Synthesis, polymerisation and characterisation of a novel olefin-modified acrylate monomer, 1-methyl-1-propyl-hexel acrylate
(Stellenbosch : Stellenbosch University, 2005-03)
ENGLISH ABSTRACT: Finding use for byproducts from the chemical industry holds many advantages for a
country's economy. Synthesis of new monomers from such byproducts adds value
to otherwise otherwise low-value material.
The ...
Decoy systems simulating jet aircraft plume emissions and strategies for suppression of emissions from missile plumes
(Stellenbosch : Stellenbosch University, 1997-03)
ENGLISH ABSTRACT: This study covers the development of technology to be able to manufacture a flare
that can lure a modem state-of-the-art heat-seeking missile. Consequently it was
necessary to characterize the exhaust ...
Click chemistry for the preparation of advanced macromolecular architectures
(Stellenbosch : University of Stellenbosch, 2010-03)
ENGLISH ABSTRACT:
Different click chemistry methods have been used together with Reversible Addition-
Fragmentation chain Transfer (RAFT) mediated polymerization to synthesize macromolecular
architectures.
A new leaving ...
The effect of in-process ethylene incorporation on the evolution of particle morphology and molecular characteristics of commercial heterophasic ethylene propylene copolymers (HEPCs)
(Stellenbosch : Stellenbosch University, 2014-04)
ENGLISH ABSTRACT: Impact copolymers or heterophasic polypropylene-ethylene-co-propylene copolymers (HEPCs) commonly produced in industry are valued for their good mechanical properties, combining the rigidity of the ...
The use of laser light scattering to study solution crystallization phenomena in polyolefins
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: An instrument, named solution crystallization analysis by laser light scattering (SCALLS), that measures
the solution melting and crystallization of polymers in solution was developed further in this ...
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 ...
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 ...