Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.467771
Title: The synthesis of polyhydroxy aryl sulphones and their tanning action on collagen in the presence of aluminium salts
Author: Orszulik, Stefan Tadeusz
Awarding Body: University of London
Current Institution: Royal Holloway, University of London
Date of Award: 1978
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Abstract:
The action of a variety of polyphenolic compounds on collagen, when used in the presence of aluminium salts, has been investigated. This and further data obtained from deuterium exchange experiments on treated gelatine provide information on the mode of action of these tanning systems. A variety of diaryl sulphones has been prepared by a) standard methods, b) the action of arylsulphinic acids on o-quinones, and c) the action of arylsulphinic acids on arylthalliums. H and C n.m.r. spectroscopy, and infrared spectroscopy were employed in the structural analysis of prepared compounds. The proton-ligand stability constants of a number of polyphenolic compounds have been evaluated. The aluminium complexes of these polyphenolic compounds have been investigated by potentiometric and preparative methods. All constants were obtained after rigorous treatment of the experimental data by a) standard methods and b)computer techniques. Investigations by 15N n.m.r. and infrared spectroscopy indicate that glycine and β-alanine may act as bidentate ligands towards aluminium.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.467771  DOI: Not available
Keywords: Organic Chemistry
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