The fate of organotin stabilisers in poly(vinyl chloride) (PVC) under processing conditions and during thermal degradation
- 1 June 1989
- journal article
- research article
- Published by Wiley in Makromolekulare Chemie. Macromolecular Symposia
- Vol. 29 (1) , 197-207
- https://doi.org/10.1002/masy.19890290115
Abstract
Quantitative 119Sn‐NMR spectroscopy is a valuable tool to identify and determine quantitatively all organotin species which are formed in PVC during processing or a thermal degradation test by reaction with the polymer or by subsequent ligand exchange reactions between different organotin compounds. By this method conversion rates of monoalkyltin and dialkyltin isooctylthioglycolates in PVC have been determined as a function of the duration of thermal treatment. It is shown that organotin stabilisers can also react with lubricants and other additives to compounds like R2Sn(SR)(OCOR) during the processing of PVC, thus influencing the efficiency of the stabilising action.Keywords
This publication has 8 references indexed in Scilit:
- Role of organotin mercaptide stabilizer in heat and light stability of PVCJournal of Vinyl and Additive Technology, 1986
- A 119mSn Mossbauer study of the thermal degradation of PVC stabilised by various organotin(IV) and tin(II) compoundsPolymer Degradation and Stability, 1985
- A 119Sn Mössbauer study of the thermal degradation of organotin stabilisers in PVCJournal of Organometallic Chemistry, 1980
- Stabilisation of poly(vinylchloride) by dibutyl tin thioglycolate—Part I: Structure and composition changes which occur during processingPolymer Degradation and Stability, 1980
- The stabilization of PVC against heat and lightPure and Applied Chemistry, 1977
- The synthesis and infrared spectra of organotin(IV) mercaptoester chloridesJournal of Organometallic Chemistry, 1976
- Untersuchungen zum Mechanismus der PVC‐Stabilisierung mit Organozinn‐VerbindungenDie Angewandte Makromolekulare Chemie, 1975
- Exchange of carboxylate for thiolate in organotin compounds and the mechanism of poly(vinyl chloride) stabilizationJournal of Applied Polymer Science, 1973