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Supported zeolite A membranes. Feasibility of the static transverse synthesis : a new approach
(Stellenbosch : Stellenbosch University, 2002-12)
ENGLISH ABSTRACT: As there is inadequate control of the hydrothermal synthesis technique used to date in the
synthesis of zeolite A membranes, the feasibility of a new synthesis approach was investigated,
namely the ...
Propylene / 1-pentene random copolymers : preparation, characterisation and commercialisation
(Stellenbosch : Stellenbosch University, 2002-03)
ENGLISH ABSTRACT: Most polypropylene copolymers commercially available have ethylene, and to a
lesser degree t-butene as comonomers. Commercially available higher a-olefins,
mostly even-numbered, are seldom used for the ...
Synthesis, characterization and testing of nano-structured particles for effective impact modification of glassy amorphous polymers
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: The synthesis of structured nanoparticles, in particular core/shells, IS of great
technological and economical importance to modem materials science. One of the
advantages of structured particles is ...
Structure/property relationship of model alkali-soluble rheology modifiers synthesised via the RAFT process
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: Alkali-soluble rheology modifiers are commercially synthesised via conventional freeradical
polymerisation processes. This results in the end product having certain
limitations; there is poor control ...
Fischer-Tropsch ionomeric waxes
(Stellenbosch : Stellenbosch University, 2003-12)
ENGLISH ABSTRACT: This dissertation describes work done on Fischer- Tropsch ionomeric waxes. The
waxes are characterized with respect to the method of manufacture, the mechanism of
the oxidation process, the saponification, ...
Groundwater chemistry and supplementary sources of freshwater in Arid environments : groundwater salinisation, solar desalination & fog collection
(Stellenbosch : Stellenbosch University, 2002-03)
ENGLISH ABSTRACT: Freshwater is the most fundamental of all life-supporting resources that determine our
social, economic and political wellbeing. It is, however, only a small percentage of
the world's water resources ...
Innovative spectroscopic and chromatographic techniques for the analysis of complex polyolefins prepared by metallocene catalysis
(Stellenbosch : Stellenbosch University, 2002-12)
ENGLISH ABSTRACT: The study focused on the analysis of a variety o f synthesised tailored copolymers.
During the investigation o f the samples new and innovative analytical techniques
were developed to be able to identify ...
The effect of controlled degradation with an organic peroxide on the molecular characteristics and properties of heterophasic propylene-ethylene copolymers (HECO)
(Stellenbosch : Stellenbosch University, 2013-03)
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 ...
Highly filled water based polymer/clay hybrid latexes
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: The use of co-sonication (ad-miniemulsion) polymerisation for the preparation of highly filled polymer/clay hybrid latexes is described. Laponite (Lap) content levels in the range of 10–50 wt% were ...
Synthesis and characterization of two novel urethane macromonomers and their methacrylic/urethane graft copolymers
(Stellenbosch : University of Stellenbosch, 2010-03)
ENGLISH ABSTRACT:
Polymethacrylates are well known adhesives and can carry specific functionality, but have
the disadvantage that their flexible backbones impart limited thermal stability and mechanical
strength. ...