کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9770289 | 1501944 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Diffusion process of methane molecules in cylindrical channel cavities of oriented polyester with long n-alkyl side chains as studied by field-gradient 1H NMR spectroscopy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pulse field-gradient spin-echo 1H NMR experiments on methane molecules charged into cylindrical channel cavities in the hexagonal columnar phase of oriented poly(p-biphenylene terephthalate) with long n-dodecyl side chains have been carried out in order to elucidate diffusion process of the methane molecules in the directions parallel and perpendicular to the cylindrical channel cavity axis. From these experimental results, it is found that methane molecules in the cylindrical channel cavities are not only diffusing in the direction parallel to the cylindrical channel cavity axis, but are diffusing through the wall of the cylindrical channel cavity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 739, Issues 1â3, 4 April 2005, Pages 131-136
Journal: Journal of Molecular Structure - Volume 739, Issues 1â3, 4 April 2005, Pages 131-136
نویسندگان
Masanori Matsui, Yuji Yamane, Shigeki Kuroki, Isao Ando, Kai Fu, Junji Watanabe,