کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1197968 1492988 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of polymer additives using analytical pyrolysis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Determination of polymer additives using analytical pyrolysis
چکیده انگلیسی

When analyzing a polymeric material using pyrolysis-GC, the majority of the peaks seen are degradation products from the polymer matrix, but there may be specific compounds present resulting from the presence of antioxidants, plasticisers, stabilizers, flame retardants and other additives. Some of these compounds may be volatile or semi-volatile and appear as intact molecules, while others are larger and only appear as fragments after the pyrolysis. In understanding the pyrolysis of the complete system, it is important to understand the behavior of such additives under the thermal conditions used to analyze the polymer matrix.This paper presents data for several polymer additives, showing their contribution to the analytical results when studying typical polymers using Py-GC/MS. Specific types of additives include phenolic antioxidants, hindered amine light stabilizers, phthalates and phosphites.It was determined that for some additives, especially when analyzing simple polymers, co-analysis of the polymer and additive was feasible. For other, more complex formulas, a multi-step approach permitted a thermal separation of compound families and simplified the analysis. For some additives, especially in the parts-per-million range, pyrolysis with selected or extracted ion mass spectrometry was the most informative.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Analytical and Applied Pyrolysis - Volume 79, Issues 1–2, May 2007, Pages 353–361
نویسندگان
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