De Kock, Neil(Stellenbosch : Stellenbosch University, 2013-03)
ENGLISH ABSTRACT: This study focused on the development of an analytical method whereby creatinine, creatine and caffeine could be determined quantitatively. Urine is the preferred body fluid for the analysis of metabolites ...
Du Toit, Madeleine Leonore(Stellenbosch : Stellenbosch University, 2013-03)
ENGLISH ABSTRACT: The main aim of this study was to use poly (ethylene-co-vinyl alcohol) (EVOH) as vehicle to
incorporate nanofillers into low density polyethylene (LDPE). For this purpose, chitin and cellulose
nanowhiskers ...
ENGLISH ABSTRACT: Solution electrospinning is a technique used to produce polymer micro- or nanofibres. Recently a great deal of research has been done on the application of polymer nanofibres produced by this method.
The ...
Van Laeren, Laura Jane(Stellenbosch : Stellenbosch University, 2013-03)
ENGLISH ABSTRACT: Calixarenes are large cyclic molecules that have a distinctive bowl-shaped geometry. The nonplanar nature of these molecules means that, by selectively functionalizing the calixarene on one side of the ...
ENGLISH ABSTRACT: Complex polymers are defined by their distributive properties with respect to molecular weight, chemical
composition, functionality and molecular topology. As a result, polymer properties are very ...
Van Wyk, Pieter-Hugo(Stellenbosch : Stellenbosch University, 2013-03)
ENGLISH ABSTRACT: In this work a robust reversed phase ion-pairing high performance liquid chromatographic
(RP-HPLC) method has been developed for the separation, characterization and quantification of
all possible ...
ENGLISH ABSTRACT: In this study an economical, environmentally friendly, selective and efficient process for the extraction and recovery of [AuCl4]- from aqueous acidic chloride-rich solutions, particularly those aqueous ...
Engelbrecht, Leon de Villiers(Stellenbosch : Stellenbosch University, 2013-03)
ENGLISH ABSTRACT: The high-resolution 195Pt NMR signals (128.8 MHz) of most of the octahedral mixed-ligand Pt(IV) complexes in the series [PtCl6-n(OH)n]2-, n = 0-6, have been recorded in aqueous solutions at 293 K. These ...
ENGLISH ABSTRACT: Polymer composites, and in particular wood-polymer composites have become commercially and
environmentally important materials. Studies in polyolefin-wood composites have mostly focused
on polypropylene ...
ENGLISH ABSTRACT: Impact Polypropylene Copolymers (IPCs) are extremely complex materials, consisting of a mixture of
polypropylene homopolymer and copolymers having different comonomer (ethylene) contents and
chemical ...
ENGLISH ABSTRACT: A comparative study of the chemical composition of linear low density polyethylene polymers, synthesised with 1 - hexene as comonomer was conducted. Catalyst trials were conducted on the linear low density ...
ENGLISH ABSTRACT: Heterophasic copolymers (also known as HECO polymers) or often referred to only as impact
copolymers or block copolymers comprise a polymer matrix with a dispersed rubbery
copolymer phase. The polymer ...
Willemse, Abraham Cilliers(Stellenbosch : Stellenbosch University, 2013-03)
ENGLISH ABSTRACT: Trace amounts of soluble Pt(II/IV) ions are not recovered using current refining processes. There are both economic and environmental incentives to recover these Pt(II/IV) ions from effluent. The work ...
ENGLISH ABSTRACT: In this thesis the synthesis of a range of model and siloxane functionalized salicylaldimine ligands and
[N-(n-propyl)-(2-pyridyl)] diimine ligands are described. The functionalized ligands were obtained ...
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 ...