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Now showing items 31-40 of 71
Synthesis and characterization of glycopolymer brushes
(Stellenbosch : University of Stellenbosch, 2010-12)
ENGLISH ABSTRACT: Please refer to full text for abstract
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 ...
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 ...
N-vinylpyrrolidone-vinyl acetate block copolymers as drug delivery vehicles
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: The primary aim of this study was to investigate the feasibility of the amphiphilic block
copolymer poly((vinylpyrrolidone)-b-poly(vinyl acetate)) (PVP-b-PVAc) as a vehicle for
hydrophobic anti-cancer ...
The use of chromium/bis(diphenylphosphino)amine catalysts in tandem ethylene copolymerization processes
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: The possibility of utilizing the chromium/bis(diphenylphosphino)amine (PNP) type of
catalysts in ethylene polymerization processes was investigated. These processes
include the production of linear low ...
Superparamagnetic nanoparticles for synthesis and purification of polymers prepared via controlled/"living" radical polymerization (CLRP)
(Stellenbosch : University of Stellenbosch, 2010-03)
ENGLISH ABSTRACT:
Living chains prepared by RAFT polymerization and NMP reactions using Z-carboxylate and Z-phosphate RAFT agents, and X-phosphate NMP initiators, were efficiently attached to the surface of magnetic ...
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 ...
Reversible addition fragmentation chain transfer (RAFT) mediated polymerization of N-vinylpyrrolidone
(Stellenbosch : University of Stellenbosch, 2008-03)
Xanthate-mediated polymerization was investigated as a tool for the preparation
of well-defined poly(N-vinylpyrrolidone) and copolymers of N-vinylpyrrolidone. Some
results regarding the monomer vinyl acetate are included, ...
The effect of the crystalline state on the properties of the dative bond
(Stellenbosch : Stellenbosch University, 2005-12)
ENGLISH ABSTRACT: Density functional theory (DFT) has been used to investigate the effect of
the surrounding molecules on the structure of selected boron-nitrogen compounds.
It was found that a very limited number of ...