- Author
- Zhu, J.
- Title
- Cross-Linding of Polystyrene by Friedel-Crafts Chemistry and the Flame Retardancy of Polymer-Clay Nanocomposites.
- Coporate
- Marquette Univ., Milwaukee, WI
- Report
- THESIS, August 2001, 163 p.
- Keywords
- polystyrene | flame retardants | polymer | clay | nanocomposites | combustion | vapor phases | test methods | fire tests | thermogravimetric analysis | cone calorimeters | equipment | UL 94 | oxygen index test | copolymers | additives | FT-IR | crosslinking | thermal stability | mechanical properties
- Abstract
- This work consists of three chapters. In Chapter 1, Introduction, it will tell the mechanism of polymer combustion and corresponding flame retardancy methods. Two important methods, cross-linking and nanocomposites, are discussed in detail. Finally, the fire test methods are introduced. In Chapter 2, Cross-Linking of Polystyrene by Friedel-Crafts Chemistry, polystyrene has been copolymerized with 4-vinylbenzyl alcohol, 4-(2-hydroxyethyl)styrene, and 4-(3-hydroxypropyl)styrene and it has been shown that thermal cross-linking of these copolymers is dependent upon the alcohol content. In Chapter 3< The Flame Retardancy of Polymer-Clay Nanocomposites, various organic modifiers have been synthesized and their modified clays were obtained. The polymer-clay nanocomposites (PCN) were prepared from in-situ polymerization of monomer with organic modified clay.