کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
170728 458411 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Head-to-head and head-to-tail multilayer n-alkylsilsesquioxane films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Head-to-head and head-to-tail multilayer n-alkylsilsesquioxane films
چکیده انگلیسی

Two lamellar organosilica films made up of stacks of head-to-head and head-to-tail alkyl bilayers were synthesized by a UV-driven polymerization of n-C18H37SiCl3 and n-C18H37Si(OCH3)3, respectively. In addition to thermogravimetry and small-angle X-ray scattering, the characterization of these multilayer systems was focused on a variety of multinuclear solid-state NMR methods (1H, 29Si, 13C, 2D WISE). The chemical structure of the siloxane interlayer, the alkyl chain conformation and thermal stability were systematically investigated and compared. Through its marked sensitivity to molecular motion, solid-state NMR was used to investigate the effect of interdigitation on alkyl chain dynamics.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Comptes Rendus Chimie - Volume 16, Issue 10, October 2013, Pages 897–905
نویسندگان
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