Oxidation of polypropylene in a solution of monochlorobenzene
โ Scribed by Majid Abdouss; Nasser Sharifi-Sanjani; Pierre Bataille
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 187 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
The oxidation of polypropylene (PP) was performed in a solution of monochlorobenzene using tetrabutyl ammonium permanganate either in the presence or absence of purified air and dodecanol-1. The experiments were conducted under atmospheric pressure at 128 -130ยฐC. The oxidized PP was found to contain polar groups such as carboxylates, carboxylic acids, ketones, esters, etc. as determined by Fourier transform infrared, ultraviolet, nuclear magnetic resonance, and electron spectroscopy for chemical analysis. The presence of the MnO 2 formed upon the decomposition of tetrabutyl ammonium permanganate was determined by electron spectroscopy for chemical analysis. The dodecanol-1 was used as an accelerator for the oxidation reaction of PP in presence of air. Solubility trials of oxidized PP in toluene and methyl ethyl ketone were performed. A reaction mechanism is proposed.
๐ SIMILAR VOLUMES
Atactic polypropylene was oxidized in solution in the presence and absence of radical initiator over the temperature range of 140' to 200'C under oxygen pressure of 3.3 to 12.4 kg/cm2, and the effects of metal catalyst and additives on the rate, products, and change in molecular weight distribution
The oxidation of polystyrene initiated by the photodecomposition of 2,2'-azoisobutyronitrile at A > 300 nm was studied at 25ยฐC in chlorobenzene solution. The order of the reaction is approximately unity with respect to AIBN concentration and to the light intensity. The effects of concentration and m