Gamma-, photo-, and thermally-initiated oxidation of isotactic polypropylene

Autor:	D. Vaillant, Jacques Lacoste, D. J. Carlsson
Rok vydání:	1993
Předmět:	chemistry.chemical_classification Polypropylene Ketone Polymers and Plastics Carboxylic acid Organic Chemistry Infrared spectroscopy Alcohol Photochemistry chemistry.chemical_compound chemistry Tacticity Alcohol oxidation Polymer chemistry Materials Chemistry Derivatization
Zdroj:	Journal of Polymer Science Part A: Polymer Chemistry. 31:715-722
ISSN:	1099-0518 0887-624X
Popis:	The detailed oxidation products have been identified and compared from the γ-, photo-, and thermally-initiated oxidation of unstabilized polypropylene films. Products were identified and quantified by a combination of iodometric analysis and infrared spectroscopy. Spectral resolution was enhanced by derivatization reactions which allow the quantification of primary, secondary, and tertiary hydroperoxide and alcohol groups as well as more reliable analysis of carbonyl species. In contrast to polyethylene oxidation which yields predominantly ketone with lesser amounts of secondary hydroperoxide and carboxylic acid, polypropylene oxidizes to give predominantly tertiary hydroperoxide and lesser quantities of secondary hydroperoxide and ketone. In addition carboxylic acid groups are a minor product except at high degrees of thermal and photoinitiated oxidation. © 1993 John Wiley & Sons, Inc.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dd0da140f3587ab3ebb40f353ffe2d90 https://doi.org/10.1002/pola.1993.080310316 Zobrazit plný text záznamu Plný text