کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5203168 1381923 2010 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The influence of comonomers on the degradation and flammability of polyacrylonitrile: Design input for a new generation of flame retardants
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
The influence of comonomers on the degradation and flammability of polyacrylonitrile: Design input for a new generation of flame retardants
چکیده انگلیسی
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 30.9 mol% loading, and an intumescent char was produced upon burning.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 95, Issue 12, December 2010, Pages 2260-2268
نویسندگان
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