Now showing items 1-5 of 5
Wood-polymer composites utilizing degraded polyolefins as compatabilizers
(University of the Free State (QwaQwa Campus), 2011-12)
English: The effect of degraded LDPE (dLDPE) as compatibilizer on the morphology, as well as thermal, mechanical, and thermo-mechanical properties, of LDPE/wood flour (WF) composites was investigated in this study. The ...
Polymer encapsulated paraffin wax to be used as phase change material for energy storage
(University of the Free State (Qwaqwa Campus), 2011-12-09)
The study deals with the preparation and characterization of polystyrene (PS) capsules containing M3 paraffin wax as phase change material for thermal energy storage embedded in a polypropylene (PP) matrix. Blends of ...
A solid state NMR and MS characterisation of the chemical composition of mimosa bark extract
(University of the Free State, 2011-01)
English: Mimosa (Acacia mearnsii) also known as black wattle, and quebracho (Schinopsis balansae, Schinopsis lorentzii) are the major commercial sources of natural condensed tannins (proanthocyanidin oligomers) used today. ...
Synthesis and characterization of ruthenocene-containing complexes with biomedical applications
(University of the Free State, 2011)
Polysuccinimide was modified by reactions with aminopropyl morpholine and ethylenediamine to give a water-soluble biodegradable polymeric drug carrier. Ruthenocene has been functionalized in sixteen different reactions to ...
Isolation of bioactive constituents from seeds of Schotia brachypetala (Fabaceae) and Colophospermum mopane (Fabaceae)
(University of the Free State, 2011-11)
Natural products play an important role in drug discovery, as scaffolds and new skeletons. It is remarkable to note that in 2007, natural products were implicated in the development of 52% of all new drugs. These compounds ...