Oxidation of Ldpe in Presence of an Aqueous Solution of Phenyltrimethyl Ammonium Permanganate

Autor:	P. Bataille, N. Sharifi-Sanjani†
Rok vydání:	1998
Předmět:	Reaction mechanism Molar concentration Aqueous solution Polymers and Plastics Inorganic chemistry General Chemistry chemistry.chemical_compound Low-density polyethylene chemistry Ammonium permanganate Oxidizing agent Materials Chemistry Ceramics and Composites Ammonium Carboxylate
Zdroj:	Journal of Macromolecular Science, Part A. 35:337-357
ISSN:	1520-5738 1060-1325
DOI:	10.1080/10601329808001981
Popis:	The oxidation of LDPE in an aqueous solution and at room temperature is desirable if the original morphology of the polymer must be maintained. We have used the phenyltrimethyl ammonium permanganate (Ph. TMAP), prepared in our laboratory, as an oxidizing agent. The oxidation process leads to the formation of polar groups (C=O, OH, etc.) mainly carboxylate ions and quaternary ammonium hydroxides liberating MnO2 as a by-product from the decomposition of the Ph. TMAP. The presence of the MnO2 was confirmed by ESCA (XPS), IR, as well as by chemical tests. The ESCA study shows an increase in the number of oxygen atoms absorbed as compared to the molar concentration of the oxidizing agent. The tensile shear strength increases linearly with the molar concentration of the Ph. TMAP. A reaction mechanism of the LDPE oxidation at room temperature and in an aqueous solution of Ph. TMAP is proposed. Current Address: Chemistry Department, University of Tehran, Tehran, Iran.
Databáze:	OpenAIRE
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