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(J. Mater. Chem. C) A Cut-and-Paste Strategy towards Liquid Crystal Elastomers with Complex Shape Morphing
Nowadays, with the rapid progress in soft robotics and aerospace technology, novel soft actuator materials with reversible and complex shape morphing capabilities, such as helical curling, buckling, accordion-like folding, self-oscillating, waving and other three-dimensional motion modes, are highly desirable. In this manuscript, we report a new cut-and-paste method to construct liquid crystal e...
http://www.polymer.cnt//ss/yangh/publicationsshow_13138.html |
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Molecular-weight dependence of phase structure and viscosity in a liquid crystalline polyester with strong π–π interaction
In this article, the molecular-weight dependence of the phase structure, rheological behaviour and thermal stability of a main-chain liquid crystalline polyester (PBDPS) with strong π–π interaction was investigated in details by differential scanning calorimetry, polarising optical microscopy, wide-angle X-ray diffraction, dynamic oscillatory rheological measurements and thermogravimetric ana...
http://www.polymer.cnt//ss/yangrong/publicationsshow_13134.html |
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Molecular-Weight Dependence of Nucleation Effect of a Liquid Crystalline Polyester β-Nucleating Agent for Isotactic Polypropylene
Unlike low-molecular-weight inorganic or organic nucleating agents (NAs), the physical properties, including phase transition and rheological behaviors, of polymeric NAs are greatly influenced by molecular weight. In this paper, the molecular-weight dependence of the β-nucleation behaviors of a polymeric NA (a main-chain liquid crystalline (LC) polyester, PBDPS) was studied in detail. The nucle...
http://www.polymer.cnt//ss/yangrong/publicationsshow_12903.html |
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Robust Fabrication of Nonstick, Noncorrosive, Conductive Graphene-Coated Liquid Metal Droplets for Droplet-based, Floating Electrodes
Nontoxic liquid metals (conductive materials in a liquid state at room temperature) are an emerging class of materials for applications ranging from soft electronics and robotics to medical therapy and energy devices. Their sticky and corrosive properties, however, are becoming more of a critical concern for circuits and devices containing other metals as these are easily destroyed or contaminated...
http://www.polymer.cnt//ss/xczhou/publicationsshow_12901.html |
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Multitemperature Memory Actuation of a Liquid Crystal Polymer Network over a Broad Nematic–Isotropic Phase Transition Induced by Large Strain
The shape change of a polymer actuator based on liquid crystal network (LCN) generally occurs over a relatively sharp LC-isotropic phase transition. Reported herein is the discovery of an unusual phenomenon and the enabled actuation control for LCN. The smectic phase of a LCN with mesogenic moieties on the chain backbone can be suppressed by high elongation of the specimen, which gives rise to a...
http://www.polymer.cnt//ss/yangrong/publicationsshow_12699.html |
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Nonisothermal Crystallization, Melting Behaviors, and Mechanical Properties of Isotactic Polypropylene Nucleated with a Liquid Crystalline Polymer
The nonisothermal crystallization and melting behaviors of isotactic polypropylene (iPP) nucleated by a mainchain liquid crystalline polyester (poly(4,4′-bis(6-hydroxyhexyloxy)biphenyl phenylsuccinate), PBDPS) as a β-nucleating agent have been investigated by differential scanning calorimetry (DSC), wide-angle X-ray diffraction (WAXD), and polarizing optical microscopy (POM). The effect of PBD...
http://www.polymer.cnt//ss/yangrong/publicationsshow_12643.html |
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In Situ Synthesis of Imidazolium-Crosslinked Ionogels via Debus–Radziszewski Reaction Based on PAMAM Dendrimers in Imidazolium Ionic liquid
This study reports a remarkably facile method to synthesize novel ionogels
with imidazolium cycle crosslinks based on polyamidoamine (PAMAM)
dendrimers via one-pot, modified Debus–Radziszewski reaction in ionic liquid
1-ethyl-3-methylimidazolium acetate ([EMIM][OAc]). High room temperature
ionic conductivity (up to 6.8 mS cm?1) is achieved, and more remarkably, it
can still excee...
http://www.polymer.cnt//ss/hongzansong/publicationsshow_12590.html |
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Preparation of Poly(ionic liquid) Nanoparticles through RAFT/MADIX Polymerization-Induced Self-Assembly
We report herein a facile method for hierarchical regulation of the morphology of poly(ionic liquid) (PIL) nanoparticles through RAFT/MADIX aqueous polymerization-induced self-assembly of 3-n-dodecyl-1-vinylimidazolium bromide, by using PEG-xanthate as the macro-CTA. Rigid straight rods were formed over a broad composition range even at low solids, due to the high
incompa...
http://www.polymer.cnt//ss/wangjianli/publicationsshow_12374.html |
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(J. Mater. Chem. C) Hydrogen-Bonding Induced Melamine-Core Supramolecular Discotic Liquid Crystals
Recognition of melamine is not only of food industry importance but also an interesting scientific research topic. The objective of this work is to screen suitable hydrogen-bonding complementary compounds for the construction of melamine-core supramolecular discotic liquid crystal (LC) materials which might provide a LC perspective for detection and separation of melamine in the future. We desig...
http://www.polymer.cnt//ss/yangh/publicationsshow_12153.html |
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(Soft Matter) A Homeotropic Main-Chain Tolane-Type Liquid Crystal Elastomer Film Exhibiting High Anisotropic Thermal Conductivity
The development of pure polymeric films with anisotropic thermal conductivities for electronic device packaging applications has attracted intense scientific attention. In order to enhance the polymeric film’s normal-direction thermal conductivity, homeotropic alignment of macromolecular chains is the primary concern. One of the promising preparation strategies is to perform in situ photopolyme...
http://www.polymer.cnt//ss/yangh/publicationsshow_12152.html |
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