Effect of various triazine derivatives on the thermal oxidative degradation of isotactic polypropylene
โ Scribed by Zenjiro Osawa; Ng Mok Seng; Yoshitaka Ogiwara; Yukio Oto; Koji Matsui
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 379 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0021-8995
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โฆ Synopsis
Abstract
A number of triazine derivatives, mostly aryloxyโsโtriazines, were prepared, and the effects of these compounds on the thermal oxidative degradation of isotactic polypropylene were examined by conventional oxygen uptake. Almost all triazine derivatives prepared showed a more or less inhibitive effect on the degradation of the polymer. Among them, ฮฑโ and ฮฒโnapthyloxyโsโtriazines were found to be excellent inhibitors. On the basis of the results obtained, the relationship between inhibitive effect and the structure of the triazine derivatives is discussed.
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The ultimate properties of thermally oxidized polypropylene (PP) films have been determined. Attention was focused on the variation of draw stress, tensile strength, draw ratio, breaking extension, breaking factor, work of draw, and work of rupture, with a change in temperature and time of heat trea