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Chemical modification of polysaccharides with hydrophilic polymers for CaCO3 crystal growth modification and filler retention, for paper applications

Matahwa, Howard (Stellenbosch : Stellenbosch University, 2008-12)

Polysaccharides were modified with selected polymers via the grafting technique. Both anionic and cationic polysaccharides were prepared. Random and crosslinked graft copolymers were also prepared. The percentage grafting ...
Synthesis and characterization of surfmers for latex stabilization in RAFT-mediated miniemulsion polymerization

Matahwa, Howard (Stellenbosch : University of Stellenbosch, 2005-12)

Synthesis of two surfmers (cationic and anionic) was carried out and the surfmers were used to stabilize particles in miniemulsion polymerization. Surfmers were used to eliminate adverse effects associated with free ...