کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1485150 | 1510533 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Invariance of the local segmental relaxation dispersion in polycyclohexylmethacrylate/poly-α-methylstyrene blends
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
Dielectric spectroscopy was carried out on polycyclohexylmethacrylate (PCHMA) and its blend with poly-α-methylstyrene (PaMS) as a function of temperature and pressure. When measured at conditions whereby the local segmental relaxation time for the PCHMA was constant, the dispersion in the loss spectra had a fixed shape; that is, the relaxation time determines the breadth of the relaxation time distribution, independently of T and P. This result is known for neat materials and could be observed for the blend herein due to the nonpolar character of the PaMS and the degree of thermodynamic miscibility of the blend.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 41â43, 1 November 2007, Pages 3996-4000
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 41â43, 1 November 2007, Pages 3996-4000
نویسندگان
C.M. Roland, R. Casalini,