Eason, Michael Douglas (2000) Water-soluble polymers from controlled free-radical polymerisation. PhD thesis, University of Warwick.

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Abstract

Functional water-soluble polymers are used in the detergents industry as antidye
transfer agents. Anti-dye transfer agents are materials that complex with
dye in solution and therefore prevent the transfer of dye between clothing
during the laundering cycle. Current commercially available anti-dye transfer
agents are based on homopolymers or statistical co-polymers that contain
poly(N-vinyl pyrrolidone). These polymers are covered by extensive patent
protection from various companies and have also been shown to precipitate
from solution at high dye concentrations. Novel free-radical polymerisation
techniques have been used here to prepare controlled architecture polymers
based on poly-2-(dimethylamino)ethyl methacrylate that contain hydrophilic,
anionic and cationic functionality. Free-radical polymerisation has been used to
prepare statistical co-polymer species that contain quaternary charge. Atom
transfer polymerisation (ATP) has been used to prepare gradient co-polymers
and catalytic chain transfer polymerisation has been used to prepare
macromonomers as precursors to block co-polymer products.
The dye-binding constants of these novel polymers have been determined using
an adaptation of the static sorption technique with Direct Red 80 azo-dye in
deionised water and in anionic surfactant stock solution. The data from these
tests have improved reproducibility compared with previous studies and tests
containing anionic surfactant have highlighted the shortcomings of the static
sorption model previously used to determine the dye-binding ability of
polymers with dye in deionised water.
Hydrophilic gradient co-polymers that contain one dye-binding functionality
and one water soluble functionality have been found to offer no significant
increase in the dye-binding ability of the polymer species in comparison with
the equivalent statistical co-polymer species.

Item Type:	Thesis or Dissertation (PhD)
Subjects:	Q Science > QD Chemistry
Library of Congress Subject Headings (LCSH):	Water-soluble polymers, Detergents -- Synthesis, Colorfastness (Textiles)
Official Date:	March 2000
Dates:	Date Event March 2000 Submitted
Institution:	University of Warwick
Theses Department:	Department of Chemistry
Thesis Type:	PhD
Publication Status:	Unpublished
Supervisor(s)/Advisor:	Haddleton, David M.
Sponsors:	Unilever (Firm)
Extent:	xxxiii, 276 leaves
Language:	eng
URI:	http://wrap.warwick.ac.uk/id/eprint/36687

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