Browsing Masters Degrees (Chemistry and Polymer Science) by Title
Now showing items 135-154 of 247
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N-heterosikliese karbeenkomplekse van groep 10 metale : nuwe moontlikhede
(Stellenbosch : Stellenbosch University, 2007-03)ENGLISH ABSTRACT: This study comprises the synthesis and characterisation of N-heterocyclic carbene complexes of group 10 metals with the main focus on such complexes with the nucleophilic N-atom in a position further ...
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Negative thermal expansion of organic compounds
(Stellenbosch : Stellenbosch University, 2011-03)ENGLISH ABSTRACT: The primary objective of the work was to investigate the negative thermal expansion of organic materials and to determine the mechanisms governing this phenomenon by using the principles of crystal ...
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New amino- and titanoxycarbene complexes of group 6 metals
(Stellenbosch : Stellenbosch University, 2001-03)ENGLISH ABSTRACT: Please refer to fulltext for abstract
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New developments in the coordination chemistry of Gold(I), Gold(II) and Gold(III) with C-, N- , P-and S-donor ligands
(Stellenbosch : University of Stellenbosch, 2007-03)A comprehensive, comparative structural study of gold(I), gold(II) and gold(III) compounds with the general formula [Aux(C6F5)y(tht)z] (tht = tetrahydrothiophene) was performed. The series of compounds included the ...
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New gold(I) and gold(III) coordination complexes derived from N and S heterocycles
(Stellenbosch : University of Stellenbosch, 2006-03)Please refer to full text for abstract
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NMR studies on the mechanism of iodine mediated polymerisation
(Stellenbosch : Stellenbosch University, 2011-12)ENGLISH ABSTRACT: In reverse iodine transfer polymerisation (RITP), chain transfer agents (CTAs) are generated in situ from the reaction between 2,2’-azobis(isobutyronitrile) (AIBN) and molecular iodine. This stage of ...
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The non-covalent compatibilization of carbon nanotubes for use in polymeric composite materials
(Stellenbosch : Stellenbosch University, 2014-04)ENGLISH ABSTRACT: Since the discovery of carbon nanotubes (CNTs), a large interest has developed around the incorporation of these into polymeric matrices in order to introduce the excellent mechanical, thermal and ...
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Novel barrier coatings based on nanoclay-polymer composites
(Stellenbosch : Stellenbosch University, 2015-04)ENGLISH ABSTRACT: The investigation of the barrier properties of highly filled polymer-clay hybrid latex films is described. Montmorillonite (MMT) clay contents ranging from 10–30 wt.% were effectively incorporated into ...
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Novel materials for VOC analysis
(Stellenbosch : Stellenbosch University, 2012-12)ENGLISH ABSTRACT: The need to analyse and detect volatile organic compounds (VOCs) at trace levels has led to the development of specialized sample preparation techniques. The requirement for trace analysis of VOCs stems ...
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Novel multinuclear complexes of Rh and Ru and their application in alkene hydroformylation
(Stellenbosch : Stellenbosch University, 2015-11-25)ENGLISH ABSTRACT: This project entailed the synthesis and characterization of mono- and multi-nuclear rhodium and ruthenium iminopyridyl complexes and their application in the hydroformylation of 1- octene. The multi-nuclear ...
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Novel palladium (II) complexes belonging to a family of potential catalytic precursors
(Stellenbosch : Stellenbosch University, 2006-12)ENGLISH ABSTRACT: This study comprises the preparation and characterization of various novel organometallic complexes of palladium(ll) which contain symmetric and unsymmetric (heteroatom-containing) r..-dicarbonyl-type ...
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Novel synthesis of block copolymers via the RAFT process
(2007-12)The synthesis of complex architectures, namely block copolymers with tailored enduse properties, is currently an important research area in academia and industry. The challenge is finding a versatile polymerization ...
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Nuwe aspekte van a-olefien hidroformilering met groep 9 metaalkomplekse
(Stellenbosch : Stellenbosch University, 2002-12)ENGLISH ABSTRACT: Please refer to fulltext for abstract
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Nuwe groep 6 metaalkarbonielkomplekse met tiofeenligande en Au(I)komplekse met tiasole
(Stellenbosch : Stellenbosch University, 2003-03)ENGLISH ABSTRACT: Please see fulltext for abstract
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Nuwe karbeenkomplekse en die 'kompleks van komplekse' konsep in ligandontwerp
(Stellenbosch : Stellenbosch University, 2003-12)ENGLISCH ABSTRACT: Please refer to fulltext for abstract
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Nuwe reaksies van gedeprotoneerde Fischer-tipe karbeenkomplekse
(2005-03)This study comprises the preparation and characterisation of completely new Fischer-type carbene complexes of chromium and tungsten by deprotonation of (CO)5M=C(NMe2)(Me), (CO)5M=C(OMe)(Me) or (CO)5M=C(NMe2)C≡CH, and ...
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Die objektiewe evaluering van geurstowwe
(Stellenbosch : Stellenbosch University, 1967-03)ENGLISH ABSTRACT: no abstract available
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Organic-inorganic hybrid graft copolymers of polystyrene and polydimethylsiloxane
(Stellenbosch : University of Stellenbosch, 2010-03)ENGLISH ABSTRACT: Hybrid graft copolymers of polystyrene (PSty) and polydimethylsiloxane macromonomers (PDMS) were synthesised. PSty-g-PDMS was synthesised employing the grafting through technique via a conventionally ...
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Palladium and copper complexes based on dendrimeric and monofunctional N, N’ chelating ligands as potential catalysts in the oxidative carbonylation of alcohols
(Stellenbosch : University of Stellenbosch, 2010-03)ENGLISH ABSTRACT: In this thesis we describe the synthesis of several new N-(n-propyl)-1-(2-pyridyl and quinolyl)-imine ligands (ML1-ML4) as well as peripheral functionalised iminopyridyl and iminoquinolyl poly(propylene-imine) ...
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Polar ordering of guest molecules in host-guest inclusion complexes
(Stellenbosch : Stellenbosch University, 2011-12)ENGLISH ABSTRACT: 2,7-dimethylocta-3,5-diyne-2,7-diol forms inclusion complexes with various guests molecules, where the guest molecules are polar-ordered. A Cambridge Structural Database (CSD) search revealed ten inclusion ...