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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 ...
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 ...
The effect of monosaccharide reducing sugars on the atom transfer radical polymerization of n-butyl methacrylate and methyl methacrylate
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: The effect of various organic reducing agents, in the. form of monosaccharide reducing sugars, on the
rate of atom transfer radical polymerization (ATRP) of n-butyl methacrylate and methyl methacrylate ...
Film formation and thermal transitions of polymers studied by atomic force microscopy
(Stellenbosch : Stellenbosch University, 2002-03)
ENGLISH ABSTRACT: The kinetics of drying and film formation of different polymeric latices were studied.
Various theoretical models predict a strong dependency of the film formation
characteristics on the particle size ...
Directed synthesis of polymer mesostructures
(Stellenbosch : Stellenbosch University, 2000-12)
ENGLISH ABSTRACT: The objective of this research was to produce discrete, nano-shaped polymeric structures on the
same length scale as, or one to one copies of, templates, deformable templates or structure-directing
h ...
Synthesis, characterization and evaluation of macromonomers used to prepare rheology modifiers for possible improvement of the pigmentation of decorative coatings
(Stellenbosch : Stellenbosch University, 2000-03)
ENGLISH ABSTRACT: There is a decrease in viscosity when universal colorants are added to the latex coating
system. Two different routes were taken to investigate this problem. The first was to
investigate the thickening ...
Adamantane copolymers
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: This study concerns the incorporation of adamantane containing monomers
3-(1-adamantyl)-1-propene and 1-(1-adamantyl)-4-vinylbenzene into ethene,
propene and higher a-olefins using different catalytic ...
Porous polymeric superstructures as in-growth scaffolds for tissue-engineered vascular prostheses
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT:
Please refer to fulltext for abstract.
Polymerisation of 1,5-hexadienes
(Stellenbosch : Stellenbosch University, 2001-12)
ENGLISH ABSTRACT: In this study, the feasibility of the non-conjugated 1,5-hexadiene as monomer in
metallocene catalised cyclopolymerizations was considered. Homopolymers and
copolymers with ethylene, propylene, 1-pentene, ...
Emulsion polymerization of styrene in the presence of reversible addition-fragmentation chain transfer agents
(Stellenbosch : Stellenbosch University, 2000-03)
ENGLISH ABSTRACT: This work involves the study of the effects of Reversible Addition-Fragmentation Chain
Transfer (RAFT) agents on the emulsion polymerization of styrene. The feasibility of
RAFT as a method for obtaining ...