کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5205021 | 1381980 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal degradation behaviors of some branched and linear polysiloxanes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal degradation behaviors of some branched and linear polysiloxanes Thermal degradation behaviors of some branched and linear polysiloxanes](/preview/png/5205021.png)
چکیده انگلیسی
The thermal degradation behaviors of some branched and linear polysiloxanes were studied by thermogravimetric (TG) analysis and infrared (IR) spectroscopy, and the effect of phenyl content on the thermal stability of the tested branched polysiloxanes was investigated. The branched polysiloxanes with phenyl obtain higher thermal stability at lower temperature. The degradation residues of the examined branched polysiloxanes at 800 °C are rather high, 65.1-77.6% in N2 and 40.5-66.5% in air, respectively. However, the amount of solid residue increases with decrease in phenyl content in both N2 and air atmospheres. It was found that the thermal stability of the branched polysiloxanes is higher than that of the linear one, which indicated that the branched structure benefits the formation of a crosslink in the solid residue.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 91, Issue 7, July 2006, Pages 1471-1475
Journal: Polymer Degradation and Stability - Volume 91, Issue 7, July 2006, Pages 1471-1475
نویسندگان
Wenjun Zhou, Hui Yang, Xingzhong Guo, Jingjuan Lu,