2018-11-21 13:15 - Scheduled maintenance completed. Some content may not be visible through the discovery interface until the search indexing process completes.
Now showing items 1-7 of 7
Advances in catalytic chain transfer polymerisation mediated by cobaloximes
Catalytic chain transfer copolymerisation of MMA and HEMA (70:30) has been carried out under semi-continuous emulsion polymerisation conditions, using CoBF as catalyst. It has been shown that macromonomers of low molar ...
RAFT polymerisation in water-borne organic dispersions
Two different approaches to achieving controlled reversible addition-fragmentation chain transfer polymerisation in water-borne dispersions have been attempted, both giving reasonable control over molar mass evolution. ...
Ultraviolet (UV) curing of phosphated polyurethane-acrylic dispersions
Phosphate-containing polyurethane-acrylic dispersions were synthesised for UV curing studies. The effects of light intensity, substrate-dependent temperature increase, soft-segment content and water on conversion were ...
Phosphated polyurethane dispersions: Synthesis, emulsification mechanisms and the effect of the neutralising base
Phosphate-containing polyester macroglycols with different phosphate contents were synthesised from a phosphorus-containing monomer, a dicarboxylic acid and a diol. The macroglycols were then used as a soft segment for the ...
Use of the surfmer 11-(methacryloyloxy) undecanylsulfate MET as a comonomer in polystyrene and poly(methyl methacrylate)
The polymerizable surfactant sodium 11-(methacryloyloxy) undecanylsulfate (MET) has been synthesized with high purity, and its thermal stability and phase transitions have been studied by thermo gravimetric analysis (TGA) ...
Electron spin resonance studies of reversible addition-fragmentation transfer polymerisation
The polymerisation of styrene in the presence of cumyl dithiobenzoate (RAFT agent) was studied. Electron spin resonance spectroscopy was used to determine the time-dependence of the concentrations of the intermediate radical ...
Use of nonporous polymeric flat-sheet gas-separation membranes in a membrane-iquid contactor: Experimental studies
Flat-sheet non-porous asymmetric poly( vinyltrimethylsilane) (PVTMS) membranes and composite membranes comprising a dense layer of polydimethylsiloxane/polyphenylsilsesquioxane (PDMS/PPSQ) block copolymer were evaluated ...