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Organophosphite transformations in flexible PVC formulations
Author(s) -
Jakupca Michael R.,
Harr Mark E.,
Stevenson Don R.
Publication year - 2004
Publication title -
journal of vinyl and additive technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 35
eISSN - 1548-0585
pISSN - 1083-5601
DOI - 10.1002/vnl.20014
Subject(s) - stabilizer (aeronautics) , materials science , component (thermodynamics) , lewis acids and bases , organic chemistry , polymer science , polymer chemistry , chemical engineering , chemistry , thermodynamics , catalysis , mechanical engineering , physics , engineering
Abstract Organophosphites are a versatile component of liquid PVC heat stabilizers and stabilize PVC through a variety of mechanisms. Organophosphites can decompose peroxides, replace labile chlorines on the PVC backbone, scavenge HCl (via the Arbuzov rearrangement), complex Lewis acids, and add to double bonds. This paper attempts to identify the relative contributions of these mechanisms in both model systems and flexible PVC formulations. J. Vinyl Addit. Technol. 10:99–103, 2004. © 2004 Society of Plastics Engineers.