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Title: The modification of polydienes using sulphenyl chlorides
Author: Muir, R. B.
Awarding Body: University of Aberdeen
Current Institution: University of Aberdeen
Date of Award: 1975
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The effects of modification on the physical and dielectric properties have been examined by a study of the tensile and dielectric properties of an adduct of cis-1,4-polybutadiene and p-toluene sulphenyl chloride. A series of polymers with a range of degree of modification were prepared for this study and the relationships between physical properties, the extent of modification and the molecular structure are discussed. Carboxyl groups have been added to polydienes using difunctional sulphenyl chlorides. Carboxy-sulphehyl chlorides and chloro-carbonyl sulphenyl chlorides were both used to prepare polymers which could react with metal salts to form ionomers. Chlorocarbonyl sulphenyl chlorides were also used as grafting agents and a number of graft copolymers of polydienes and polyethers were prepared. The surfactant properties of some of these grafts were investigated. The final part of this thesis reports a study of the kinetics of the addition of 4-chloro-benzenesulphenyl chloride to a number of polydienes and to a small molecular analogue trans-4-octene. The significance of the results with respect to the mechanism of addition of sulphenyl chlorides to olefins is discussed.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available