کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5204955 1381976 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of the thermal degradation of fully aromatic regular polyesters: Poly(oxy-1,4-phenyleneoxy-fumaroyl-bis-4-oxybenzoate)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Investigation of the thermal degradation of fully aromatic regular polyesters: Poly(oxy-1,4-phenyleneoxy-fumaroyl-bis-4-oxybenzoate)
چکیده انگلیسی

The thermal behaviour and degradation mechanism of fully aromatic polyester, poly(oxy-1,4-phenyleneoxy-fumaroyl-bis-4-oxybenzoate), were studied by pyrolysis-gas chromatography and pyrolysis-gas chromatography/mass spectrometry at 500-700 °C, and by thermogravimetry. The influence of fullerene C60 additives on thermal behaviour and thermal degradation was investigated. On the basis of pyrolysis products determined, the origin of the main degradation products (maleic anhydride, phenol, hydroquinone, phenyl ether, p-hydroxybenzoate-p′-phenol, etc.) was estimated. The fullerene is a well-known efficient acceptor of radicals and its presence influences the thermal degradation process of polymers shifting the decomposition from a radical pathway to a non-radical mechanism. Thermal degradation mechanism of poly(oxy-1,4-phenyleneoxy-fumaroyl-bis-4-oxybenzoate) is discussed in detail.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 91, Issue 12, December 2006, Pages 3214-3220
نویسندگان
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