کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5409066 1506535 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel columnar liquid crystalline oligomers: Triphenylene tetramers with rigid aromatic Schiff-bases and hydrogen-bonding spacers via click chemistry
ترجمه فارسی عنوان
الیگومرهای کریستال مایع ستاره ای رمان: تترامرهای تری فنیلن با اسید فسفات اسید فسفریک و اسپاررهای هیدروژنی اتصال از طریق شیمی کلیک
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
Three novel triphenylene tetramers with triazole bridges, rigid aromatic Schiff-bases and hydrogen-bonding spacers were designed and synthesized in yield of 73-78%. Their structures were confirmed by IR, NMR and MS. Their mesomorphic properties were studied by polarizing optical microscopy, differential scanning calorimetry and X-ray diffraction. These novel triphenylene tetramers possessed the hexagonal columnar mesophase and exhibited excellent mesomorphic properties with melting points at 30-60 °C, which was first observed near room temperature for triphenylene tetramers. This study suggested that the mesomorphic properties of triphenylene oligomers could be tuned conveniently by the structures of spacers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 236, June 2017, Pages 76-80
نویسندگان
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