Crystallography of the Polymethylene Chain

An Inquiry into the Structure of Waxes

Douglas Dorset

244 pages, parution le 05/08/2005

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Résumé

By considering the solid state packing of linear chain wax components, this book aims at understanding three things: firstly, which modifications of molecular components are allowed for maintaining stable solid solutions; secondly, what happens when stability conditions are traversed and fractionation begins and thirdly, the structure of fractionated arrays. The co-compatibility of molecular ingredients is considered in terms of their shapes and relative sizes, following an approach originally proposed by Kitaigorodskii. As demonstrated profusely by the crystal structures of pure component types (e. g. alkanes, fatty alcohols, fatty acids, long chain esters, cholesteryl esters) and insertion of functional groups (e. g. chain branches, unsaturation, heteroatoms), characteristic molecular packing arrays provide important geometric information for understanding the co-packing of different molecules in mixtures. Single crystal and spectroscopic data from polydisperse arrays can then be evaluated to arrive at plausible structures of solid solutions and fractionated systems. The resultant structures are not only relevant to the understanding of so-called waxes but also include certain classes of polymers. The ramifications of this work extend into any solid state array of polymethylene chains, including lipid foodstuffs.

First comprehensive overview on the crystallography of relatively simple polymethylene chain materials.
Modern critique of wax structural models.
Written by very experienced researcher.
Presents complex material in a clear and pedagogical manner.
Contains many illustrations.

Readership: Crystallographers and researchers working in the petroleum field and polymer physics; also physical chemists and crystal engineers.

L'auteur - Douglas Dorset

Douglas L. Dorset, Senior Research Associate, ExxonMobil Research and Engineering Co., Annandale, New Jersey, USA

Sommaire

Polydispersity of the paraffin chain: statement of the problem
Layer packing of polymethylene chains
Crystal structures and phase transitions of the paraffins
Thermotropic disorder in n-paraffin crystals
Binary and multicomponent solids of n-paraffins
Some functional substitutions in n-paraffins
Lipid alcohols
The fatty acids
Linear fatty acid esters
The cholesteryl esters
From waxes to polymers: the crystallography of polydisperse arrays

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Caractéristiques techniques

	PAPIER
Éditeur(s)	Oxford University Press
Auteur(s)	Douglas Dorset
Parution	05/08/2005
Nb. de pages	244
Format	16 x 24
Couverture	Relié
Poids	570g
Intérieur	Noir et Blanc
EAN13	9780198529088
ISBN13	978-0-19-852908-8