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Mechanisms of Polymer Degradation and Stabilisation (Hardcover, 1990 ed.)
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Mechanisms of Polymer Degradation and Stabilisation (Hardcover, 1990 ed.)
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The purpose of this publication is two-fold. In the first place it
is intended to review progress in the development of practical
stabilising systems for a wide range of polymers and applications.
A complemen tary and ultimately more important objective is to
accommodate these practical developments within the framework of
antioxidant theory, since there can be little question that further
major advances in the practice of stabilisation technology will
only be possible on a firm mechanistic foundation. With the
continual increase in the number of commercial anti oxidants and
stabilisers, often functioning by mechanisms not even considered
ten years ago, there is a need for a general theory which will
allow the potential user to predict the performance of a particular
antioxidant structure under specific practical conditions. Any such
predictive tool must involve a simplified kinetic approach to
inhibited oxidation and, in Chapter 1, Denisov outlines a possible
mechanistic approach with the potential to predict the most useful
antioxidant to use and the limits of its usefulness. In Chapter 2,
Schwetlick reviews the current state of knowledge on the
antioxidant mechanisms of the phosphite esters with particular
emphasis on their catalytic peroxidolytic activity. Dithiophosphate
v vi PREFACE derivatives show a similar behaviour but for quite
different reasons and, in Chapter 3, AI-Malaika reviews information
available from analytical studies, particularly using 31p_NMR
spectroscopy, to elucid ate the complex chemistry that leads to the
formation of the antioxidant -active agents.
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