Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5203168 | Polymer Degradation and Stability | 2010 | 9 Pages |
Abstract
A series of homo- and copolymers of acrylonitrile was prepared under radical initiation in DMF solutions. The thermal and flammability characteristics of these polymers were evaluated through thermogravimetric analyses (TGA), differential scanning calorimetry (DSC), and by limiting oxygen index (LOI) measurements. The thermal degradation behaviours of the polymers were assessed primarily with a view to designing comonomers, for acrylonitrile-based polymers, bearing flame retardant moieties. Broadly speaking, in LOI tests acrylic-based comonomers were found to improve fire performance. For instance, the incorporation of methacrylic acid gave a limiting oxygen index value of 26.4 at 30.9Â mol% loading, and an intumescent char was produced upon burning.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Vincent Crook, John Ebdon, Barry Hunt, Paul Joseph, Paul Wyman,