کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5413468 | 1506626 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of mesogenic properties and molecular conformation from a heterogeneous tetramer with a triphenylene centre core and three cyanobiphenyl tails
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Study of mesogenic properties and molecular conformation from a heterogeneous tetramer with a triphenylene centre core and three cyanobiphenyl tails Study of mesogenic properties and molecular conformation from a heterogeneous tetramer with a triphenylene centre core and three cyanobiphenyl tails](/preview/png/5413468.png)
چکیده انگلیسی
A novel liquid crystalline material which consists of both discotic and calamitic units to form a star structure bearing a triphenylene as centre core and three cyanobiphenyl tails has been synthesized. Phase behaviour of the material was investigated using polarised optical microscopy, thermal analysis and X-ray diffraction. The heterogeneous tetramer showed multi-mesophases that can be kinetically controlled. When the pure tetramer was heated up and cooled down at 10 °C minâ 1 directly, it showed only a crystalline phase and no mesophase. The annealing sample showed smectic mesophase and the quenched sample showed nematic phase, columnar phase can be induced by TNF in the binary system containing the tetramer and TNF.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 138, Issues 1â3, 15 February 2008, Pages 93-99
Journal: Journal of Molecular Liquids - Volume 138, Issues 1â3, 15 February 2008, Pages 93-99
نویسندگان
Chunxiu Zhang, Zhiqun He, Junjie Wang, Yongsheng Wang, Shi Ye,