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A new and efficient synthetic method of a liquid crystalline epoxy resin with biphenol and aromatic ester group
This article describes a high efficient and economical method to synthesize a liquid crystalline epoxy resin (LCER) containing biphenol and aromatic ester group, 3,3',5,5'-tetramethylbiphenyl-4,4'-diyl bis(4-(oxiran-2-ylmethoxy) benzoate) (4). First, 3,3',5,5'-tetramethylbiphenyl-4,4'-diyl bis(4-hydroxybenzoate) (3) was prepared by direct esterification of 3,3',5,5'-tetramethylbiphenyl-4,4'-diol (...
http://www.polymer.cnt//ss/caizhiqi/publicationsshow_4174.html |
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Thermal properties and cure kinetics of a liquid crystalline epoxy resin with biphenyl-aromatic ester mesogen
A liquid crystalline epoxy resin diglycidyl ether of 3,3',5,5'-tetramethylbiphenyl-4,4'-diyl bis(4-hydroxybenzoate) (DGE-TMBPBHB) was synthesized and its thermal properties were studied by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). Thermal history markedly affected liquid crystalline (LC) phase behaviors. The peak values of the isotropized temperature (TO, crys...
http://www.polymer.cnt//ss/caizhiqi/publicationsshow_4173.html |
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Mechanical Properties and Morphology Studies of Thermosets from a Liquid-Crystalline Epoxy Resin with Biphenol and Aromatic Ester Groups
Liquid-crystalline epoxy thermosets were prepared by adding M1 into DGEBA/DDM blends. M2 was added to DGEBA/DDM to produce thermosets for comparison. The influences of the concentration and chemical structure on the mechanical and thermal properties were investigated systematically. The M1/DGEBA blends possessed increased rubbery plateau modulus, higher glass transition temperatures, and lower tan...
http://www.polymer.cnt//ss/caizhiqi/publicationsshow_4172.html |
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Liquid Flow in Rectangular Microchannels with Gradient Wettability Inner Surface Driven by Capillary Force and Gravity
A mathematical model for predicting liquid flow velocity in a rectangular microchannel driven by capillary force and gravity is derived. The model takes into account the additional driving force arising from the wettability gradient on inner surface of a microchannel. The results of model prediction show that the velocity of liquid flow decreases with the length of microchannel and the wettability...
http://www.polymer.cnt//ss/caizhiqi/publicationsshow_4168.html |
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Molecular dynamics study of the ionic liquid film based on [emim][Tf2N] and [emim][TfO] adsorbed on highly oriented pyrolytic graphite
Molecular dynamics study of the ionic liquid film based on [emim][Tf2N] and [emim][TfO] adsorbed on highly oriented pyrolytic graphite
http://www.polymer.cnt//ss/luzhongyuan/publicationsshow_4089.html |
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One-Step Synthesis of Thermosensitive Nanogels Based on Highly Cross-Linked Poly(ionic liquid)s
ImIL-based CLPNs were facilely prepared by one-step cross-linking copolymerization of geminal dicationic monomers and cross-linkers in selective solvents. Stable CLPN solutions were obtained and the particle sizes could be
fine-tuned by changing the 1·X/cross-linker feed ratio. Therefore, the one-step synthesis herein presented is an efficient method for the preparation of IL-based CLPNs. ...
http://www.polymer.cnt//ss/peaker/publicationsshow_3900.html |
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Preparation, Morphology, and Structure of Thermotropic Liquid Crystalline Polyester-imide/Phenol-formaldehyde Resin Blends
As a novel toughening agent, thermotropic liquid crystalline polymers (TLCPs) possess excellent properties of high strength, high
modulus, lowexpanding coefficient, and high thermal stability. In this study, a thermotropic liquid crystalline poly(ester-imide) derived
from N,N’-hexane-1,6-diylbis(tri-millitimide) (IA6), p-hydroxylbenzoic acid (PHB), and 4,4’-dihydroxybenzophenone (DHB...
http://www.polymer.cnt//ss/weichun/publicationsshow_3895.html |
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Hydrogen-bonding-induced Supramolecular Liquid Crystals and Luminescent Properties of Europium-substituted Polyoxometalate Hybrids
Eu-containing polyoxometalates, Na9EuW10O36, K11Eu(PW11O39)2, and K13Eu(SiW11O39)2, were electrostatically canned by a cationic surfactant, N-[12-(4 carboxylphenoxy)dodecyl]-N-dodecyl-N,N-dimethylammonium bromide, through the replacement of counterions, and the resulting surfactant-encapsulated polyoxometalate complexes were characterized in detail by elemental analysis as well as IR and NMR spect...
http://www.polymer.cnt//ss/yanyi/publicationsshow_3836.html |
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Self-assembly and Supramolecular Liquid Crystals based on Organic Cation Encapsulated Polyoxometalate Hybrid Reverse Micelles and Pyridine Derivatives
The controlled self-assembly of multi-components in one system represents the capability integrating intermolecular interactions and functions of components and is believed the key procedure leading to multifunctional materials finally. In pursuing this goal, we used a double-chain cationic surfactant with a benzoic acid group at the end of one tail to encapsulate Keggin-type polyanion clusters vi...
http://www.polymer.cnt//ss/yanyi/publicationsshow_3833.html |
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Thermotropic Liquid Crystals of a Non-Mesogenic Group Bearing Surfactant-Encapsulated Polyoxometalate Complexes
Thermotropic Liquid Crystals of a Non-Mesogenic Group Bearing Surfactant-Encapsulated Polyoxometalate Complexes
DOI: 10.1021/la101928k
http://www.polymer.cnt//ss/xiankunlin/publicationsshow_3244.html |
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