کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1648030 1517323 2011 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and dielectric properties of polyarylene ether nitriles with high thermal stability and high mechanical strength
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Synthesis and dielectric properties of polyarylene ether nitriles with high thermal stability and high mechanical strength
چکیده انگلیسی

A series of polyarylene ether nitriles were synthesized by the nucleophilic aromatic substitution polymerization of 2, 6-dichlorobenzonitrile with various bisphenol monomers. Owing to the different structural units, the derived copolymers showed different glass transition temperatures in the range of 166–260 °C. Moreover, they all showed good film-forming properties and high mechanical strength ranging from 75 MPa to 117 MPa, and also exhibited high thermal stability with the 5% weight loss temperatures ranging from 373 °C to 498 °C. Furthermore, both the dielectric constant and dielectric loss were found to be relatively stable with respect to temperature before the turning point temperature, which is very near to the glass transition temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 65, Issues 17–18, September 2011, Pages 2758–2761
نویسندگان
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