Investigations of thermal elimination reactions of polymers by thermal volatilization analysis and ultraviolet spectroscopy

Autor:	I. C. McNeill, D. L. Gardner
Rok vydání:	1969
Předmět:	chemistry.chemical_classification Vinyl alcohol Materials science technology industry and agriculture Polymer Photochemistry Polyene Vinyl chloride Vinyl polymer chemistry.chemical_compound Elimination reaction chemistry Polymer chemistry Vinyl acetate Thermal stability
Zdroj:	Journal of Thermal Analysis. 1:389-402
ISSN:	1572-8943 0022-5215
DOI:	10.1007/bf01983081
Popis:	Using thermal volatilization analysis with differential condensation of volatile products, with film samples on flat-bottomed silica glass reaction tubes to permit measurements of UV spectra of partly degraded polymer, the thermal stability, the types of volatile products and the development of conjugation in the involatile residue have been compared for poly(vinyl chloride), polychloroprene, poly(vinyl acetate) and vinyl acetate/ethylene copolymers, poly(vinyl formate) and poly(vinyl alcohol). All undergo a side-group elimination reaction at lower temperatures, and polyene breakdown occurs in all the samples between 400 and 500°. The longest polyene sequences are formed by PVC. All the polymers except PVC show some complexity of products in the elimination reaction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e0baf0076f6893c14d1ab27aff36517a https://doi.org/10.1007/bf01983081 Zobrazit plný text záznamu Full text from SpringerLink