Synthesis of novel brominated bis-tetrahydrophthalimides and bis-nadimides and their possible application as flame-retardant additives for polystyrene composites
✍ Scribed by Mustafa S. Salahov; Refika Salahova; Özdemir Özarslan; Tülay Yilmaz; Attila Güngör; Abdülkadir Kuyulu
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 784 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
Ten tetrabrominated bisimides of which eight were novel were tested as flame-retardant additives. They were prepared from corresponding bisimides by the addition of bromine. Structural properties and related thermal characteristics of these brominated compounds were determined. Flame-retardant properties of tetrabrominated bisimides were tested on high-impact polystyrene, containing various amounts of brominated bisimides, according t o ASTM-D-3801, "Standard Test Method for Measuring the Comparative Extinguishing Characteristics of Solid Plastics in a Vertical Position," and DlN-51960, "Testing of Organic Floor Coverings Assessment of Flammability." It was observed that tetrabrominated bisimides had improved flame resistance of high-impact polystyrene. In addition, thermoxidative stability of novel three bisimides, 04, 14, and 05, were compared with the others.