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A review of the relationship of tin content and ligand structure on stability of rigid PVC compositions
Author(s) -
Kugele Thomas G.,
Conroy Gary M.
Publication year - 1991
Publication title -
journal of vinyl technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 0193-7197
DOI - 10.1002/vnl.730130107
Subject(s) - stabilizer (aeronautics) , tin , thermal stability , ligand (biochemistry) , metal , content (measure theory) , thermal , chemical engineering , materials science , chemistry , polymer chemistry , organic chemistry , thermodynamics , mathematics , physics , mechanical engineering , engineering , receptor , mathematical analysis , biochemistry
Histrorically, the measure of thermal performance on given PVC compositions has been approximated by the metal content of the chosen heat stabilizer. However, advances in tin and ligand chemistry necessitate the evaluation of thermal stabilizers on criteria other than metal content. Many factors including the nature of the metallic species and relative activity of the organic ligands must be considered. A discussion will be given on the facets of heat stabilizer compositions and their effects upon PVC formulations and processing. Performance criteria for organotin stabilizers. The take‐home point will be that tin content alone, in most formulations, is not the most important determinant in PVC heat stabilizer effectiveness.