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Title: Electron microscope studies of organic pigments
Author: Duckett, Gordon Richard
ISNI:       0000 0001 3433 5456
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 1987
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Organic Pigments form a large and commercially important group of materials. Crystal structure analysis of these compounds has, in general, been hampered by the small crystallite size exhibited by these materials, which precludes the use of standard single crystal x-ray diffraction techniques. The results of using an electron microscope for the crystallographic analysis of an organic pigment provides one aspect of the work recorded in this thesis. Electron microscope studies of organic crystals suffer a major, resolution limiting factor in the susceptibility of the crystals to damage on exposure to the electron beam. Computer processing of electron microscope images of organic pigments has been applied to overcome the radiation damage problem. The installation of an image processing system and the results obtained from this are described. An organic pigment, Pigment Red 57, exhibits a colour shade change, brought about by a crystallographic change, on altering the crystal water content. One of the main aims of the project was to provide an interpretation for this shade variation.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Organic chemistry