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【Mol. Cryst. Liq. Cryst., 2007, 469, 23-29.】Synthesis and mesomorphic properties of some liquid crystals with semi-fluorocarbon chains
Yonggang Yang, Haitao Li, Jianxun Wen
Mol. Cryst. Liq. Cryst., 2007, 469, 23-29.
Two series of compounds with semifluorinated chains have been synthesized. These compounds were characterized by IR, 1H NMR, 19F NMR, MS, and elemental analysis. Their phase-transition behavior was investigated by differential scanning calorimetry and pola...
http://www.polymer.cnt//ss/yangyonggang/publicationsshow_964.html |
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【Liq. Cryst., 2007, 34, 1167-1174.】The effect of a single atom in the terminal of fluorocarbon chain on liquid crystalline properties
Yonggang Yang, Haitao Li, Jianxun Wen
Liq. Cryst., 2007, 34, 1167-1174.
Eight series of chiral compounds with semi-fluorocarbon chains have been synthesized. The compounds were characterized by IR, 1H NMR, 19F NMR and mass spectroscopies and elemental analysis. Their phase transition behaviour was investigated by differential sca...
http://www.polymer.cnt//ss/yangyonggang/publicationsshow_962.html |
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Observation of intercalated smectic phases in symmetric liquid crystal dimers containing hydrazide groups
作者: Wang HT, Bai BL, Zhang P, Long BH, Tian WJ, Li M
来源出版物: LIQUID CRYSTALS 卷: 33 期: 4 页: 445-450 出版年: APR 2006
摘要: Dimeric hydrazide derivatives with nitro, phenyl, and methyl terminal subsistents were synthe...
http://www.polymer.cnt//ss/tianwenjing/publicationsshow_884.html |
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62 Programmable actuation of porous poly(ionic liquid) membranes by aligned carbon nanotubes
关键字：actuators poly(ionic liquids) porous membranes programmable bending
A porous composite membrane, combined poly(ionic liquids) with aligned carbon nanotubes that shows anisotropic actuation toward organic solvent is developed. The membrane actuator shows rapid and reversible actuation in response to acetone vapor as well as improved conductivity. These properties allow the composite membrane to be organic solvent‐induced actuator as well as a power switch.
http://www.polymer.cn/research/sy_info19560 |
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Synthesis of poly(arylene benzimidazole) sulfone (PABIS) and preparation of hollow PABIS microspheres
关键字：poly(arylene benzimidazole) sulfone; N–C coupling reaction; micro-liquid technique; hollow microsphere
4,4’-Di(benzimidazolyl)benzene sulfone, as the monomer, is very readily available by the reaction of 4,4’-dicarboxydiphenyl sulfone with o-phenylenediamine, and poly(arylene benzimidazole) sulfone (PABIS) has been synthesized by the condensation polymerization of bis(4-fluorophenyl) sulfone with di(benzimidazolyl)benzene sulfone via an N–C coupling reaction. The structure of the polymer was c...
http://www.polymer.cn/research/sy_info19469 |
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Ionic-Liquid-Grafted Rigid Poly(p-Phenylene) Microspheres Efficient Heterogeneous Media for Metal Scavenging and Catalysis
关键字：ionic liquids, metal scavenging, microspheres, nanoparticles
Novel guanidinium ionic liquid-grafted rigid poly(p-phenylene) (PPPIL) microspheres have been developed for metal scavenging and catalysis. The noble-metal nanoparticles supported on the microspheres surface can be used as efficient heterogeneous catalysts. The combination of nanoparticles and ionic liquid fragments on the microsphere surfaces enhance the activity and...
http://www.polymer.cn/research/sy_info19389 |
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Side-On Main-Chain Liquid Crystalline Polymers Prepared by Acyclic Diene Metathesis Polymerization and Thiol-Ene Click Step-Growth Polymerization
关键字：LCP
In this manuscript, we design and synthesize a
series of X-shaped mesogenic monomers, bearing two terminal-alkene tails.
Starting from these X-shaped monomers, acyclic
diene metathesis polymerization and thiol-ene polyaddition are applied for the first time to prepare two series
of side-on main-chain liquid crystalline polymers respectively.
http://www.polymer.cn/research/sy_info19356 |
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Self-assembly of liquid-crystalline physical gels under high magnetic field
关键字：liquid-crystal, physical gel, high magnetic field, orientation
Liquid-crystalline physical gels, consisting of liquid crystals (LCs) and three-dimensional continuous nanoscale fiber networks formed by self-assembled gelators with a content less than 2 wt%, are thermally reversible functional soft materials ...
http://www.polymer.cn/research/dis_info16823 |
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Isolation of cellulose with environmentally friendly delignigication from steam-exploded rice straw
关键字：rice straw, isolation of cellulose, ionic liquid, mixed solvent system, steam explosion
Isolation of cellulose from straw is a bottleneck of application of such biomass resources.
http://www.polymer.cn/research/dis_info14105 |
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A New Type of Liquid-Crystalline Triangular Honeycomb Array Formed by a Dithiophene Based X-Shaped Bolaamphiphile
关键字：Liquid crystals；self assembly；soft matter；hydrogen bonding；nanostructures
Formation of well-defined two-dimensional (2D) arrays is of current interest due to potential nanotechnological applications. Solid state 2D arrays were obtained with metallorganic frameworks (MOF) and as grids on solid surfaces.
http://www.polymer.cn/research/dis_info13007 |
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