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Now showing items 21-30 of 35
Free volume properties of semi-crystalline polymers
(Stellenbosch : University of Stellenbosch, 2011-03)
ENGLISH ABSTRACT: Positron annihilation lifetime spectroscopy (PALS) is well established as a novel method
currently available for the study of polymers at a molecular level because of its sensitivity
to the microstructural ...
Localisation and quantification of chemical functional groups on pulp fibres
(Stellenbosch : University of Stellenbosch, 2010-12)
ENGLISH ABSTRACT: The distribution of different free chemical functional groups on wood and pulp
fibres was determined by means of atomic force microscopy (AFM) with
chemically modified tips. Because these functional ...
The effect of wood composition and compatibilisers on polyethylene/wood fibre composites
(Stellenbosch : University of Stellenbosch, 2010-12)
ENGLISH ABSTRACT: The effects of the macromolecular composition and content of different wood species
on the properties of wood-polymer composites (WPCs) achieved when using
poly(vinyl alcohol-co-ethylene) (EVOH) as a ...
Novel electrospun fibres of amphiphilic organic-inorganic graft copolymers of poly(acrylonitrile)-graftpoly( dimethylsiloxane) for silicone composite reinforcement
(Stellenbosch : Stellenbosch University, 2011-12)
ENGLISH ABSTRACT: Novel silicone nanocomposites were prepared using poly(acrylonitrile) (PAN) based reinforcing
fibres as well as multi-walled carbon nanotubes (MWCNTs). Compatibility of the fibre fillers with
the silicone ...
Polymerization and oligomerization reactions mediated by metallodendrimers of zinc and palladium
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Please refer to full text for abstract
Hierarchical self‐assembly of novel para‐aryltriazole helical foldamers
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Hierarchical information transfer is investigated as a tool to prepare well‐defined
nanostructures with high aspect ratios, via the self‐assembly of helically folding poly(paraaryltriazole)
(P(p‐AT)) ...
Synthesis of permanent non-leaching antimicrobial polymer nanofibers
(Stellenbosch : Stellenbosch University, 2012-03)
ENGLISH ABSTRACT: Antimicrobial fibers are very useful in various fields such as air and water purification,
wound dressings and protective bandages, where sterile environments are essential. The nonwoven
nanofiber mats ...
Polymer-clay nanocomposites prepared by RAFT-supported grafting
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: In materials chemistry, surface-initiated reversible deactivation radical polymerisation (SI-RDRP) has emerged as one of the most versatile routes to synthesising inorganic/organic hybrid materials ...
Surface modification of styrene maleic anhydride nanofibers for efficient capture of Mycobacterium tuberculosis
(Stellenbosch : Stellenbosch University, 2012-12)
ENGLISH ABSTRACT: Tuberculosis (TB) is a major cause of morbidity and mortality across the world, affecting adults and children. Children infected with TB differ from adults, as their immunological and patho-physiological ...
Novel multidimensional fractionation techniques for the compositional analysis of impact polypropylene copolymers
(Stellenbosch : Stellenbosch University, 2013-03)
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 ...