کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
675843 | 1459621 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aging effects on the thermal expansion coefficient and the heat capacity of glassy polystyrene studied with simultaneous measurement using temperature modulation technique
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Aging effects on the thermal expansion coefficient and the heat capacity of glassy polystyrene studied with simultaneous measurement using temperature modulation technique Aging effects on the thermal expansion coefficient and the heat capacity of glassy polystyrene studied with simultaneous measurement using temperature modulation technique](/preview/png/675843.png)
چکیده انگلیسی
Aging effects on the glassy polystyrene were studied with simultaneous measurement of the complex thermal expansion coefficient and the complex heat capacity. Aging period was changed from 10 to 100 h at 90 °C. It was found that the stepwise change in the real part of the complex thermal expansion coefficient and the peak of the imaginary part occurred at lower temperature than those of the complex heat capacity in all cases. As the aging period increased the stepwise change in the real part shifted to the higher temperature and sharpened. A qualitative model based on the energy landscape picture is proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 461, Issues 1–2, 15 September 2007, Pages 67–71
Journal: Thermochimica Acta - Volume 461, Issues 1–2, 15 September 2007, Pages 67–71
نویسندگان
Koji Takegawa, Koji Fukao, Yasuo Saruyama,