Anisotropic Dye Adsorption and Anhydrous Proton Conductivity in Smectic Liquid Crystal Networks: The Role of Cross-Link Density, Order, and Orientation.
Ting Liang,Huub P. C. van Kuringen,Dirk J. Mulder,Shuai Tan,Yong Wu,Zandrie Borneman,Kitty Nijmeijer,Albertus P. H. J. Schenning +7 more
TLDR
The rigidity in the hydrogen-bonded polymer network has been altered by changing the cross-link density, the order by using different mesophases (smectic, nematic, and isotropic phases), whereas the orientation of the mesogens was controlled by alignment layers.Abstract:
In this work, the decisive role of rigidity, orientation, and order in the smectic liquid crystalline network on the anisotropic proton and adsorbent properties is reported. The rigidity in the hydrogen-bonded polymer network has been altered by changing the cross-link density, the order by using different mesophases (smectic, nematic, and isotropic phases), whereas the orientation of the mesogens was controlled by alignment layers. Adding more cross-linkers improved the integrity of the polymer films. For the proton conduction, an optimum was found in the amount of cross-linker and the smectic organization results in the highest anhydrous proton conduction. The polymer films show anisotropic proton conductivity with a 54 times higher conductivity in the direction perpendicular to the molecular director. After a base treatment of the smectic liquid crystalline network, a nanoporous polymer film is obtained that also shows anisotropic adsorption of dye molecules and again straight smectic pores are favored over disordered pores in nematic and isotropic networks. The highly cross-linked films show size-selective adsorption of dyes. Low cross-linked materials do not show this difference due to swelling, which decreases the order and creates openings in the two-dimensional polymer layers. The latter is, however, beneficial for fast adsorption kinetics.read more
Citations
More filters
Journal ArticleDOI
Hydrogen-Bonded Supramolecular Liquid Crystal Polymers: Smart Materials with Stimuli-Responsive, Self-Healing, and Recyclable Properties.
Sean J.D. Lugger,Simon J. A. Houben,Yari Foelen,Michael G. Debije,Albert P. H. J. Schenning,Albert P. H. J. Schenning,Dirk J. Mulder +6 more
TL;DR: In this paper, a review of hydrogen-bonded liquid crystalline polymers is presented, and potential future applications are discussed, including self-healing and recyclable properties.
Journal ArticleDOI
Functional Ionic Liquid Crystals.
TL;DR: The applications of ionic liquid crystals are overviewed in a comprehensive manner, finding various applications including host frameworks for guest binding, separation membranes, reaction media, and optoelectronic materials.
Journal ArticleDOI
Advanced Functional Liquid Crystals
TL;DR: In this article , a review of recent advances in functional liquid crystals based on polymers, supramolecular complexes, gels, colloids, and inorganic-based hybrids are reviewed from design strategies to functionalization of these materials and interfaces.
Journal ArticleDOI
Proton-conductive materials formed by coumarin photocrosslinked ionic liquid crystal dendrimers
Alberto Concellón,Ting Liang,Albertus P. H. J. Schenning,José Luis Serrano,Pilar Romero,Mercedes Marcos +5 more
TL;DR: In this article, a new family of liquid crystalline dendrimers has been synthesized by ionic self-assembly of poly(amidoamine) (PAMAM), bearing 4, 8, 16, 32 or 64 NH2 terminal groups and a coumarin-containing bifunctional dendron.
Journal ArticleDOI
Nanoporous Polymers Based on Liquid Crystals
TL;DR: The field has matured in the last decade, yielding polymers having 1D, 2D, and 3D channels with pore sizes on the nanometer scale, with the integration of nanoporous membranes in functional devices considered as the biggest challenge.
References
More filters
Journal ArticleDOI
One‐Dimensional Nanostructures: Synthesis, Characterization, and Applications
Younan Xia,Peidong Yang,Yugang Sun,Yiying Wu,Brian Mayers,Byron D. Gates,Yadong Yin,Franklin Kim,Haoquan Yan +8 more
TL;DR: A comprehensive review of 1D nanostructures can be found in this article, where the authors provide a comprehensive overview of current research activities that concentrate on one-dimensional (1D) nanostructure (wires, rods, belts and tubes).
Journal ArticleDOI
Review on recent progress of nanostructured anode materials for Li-ion batteries
Subrahmanyam Goriparti,Ermanno Miele,Francesco De Angelis,Enzo Di Fabrizio,Remo Proietti Zaccaria,Claudio Capiglia +5 more
TL;DR: In this article, a review highlights the recent research advances in active nanostructured anode materials for the next generation of Li-ion batteries (LIBs), and the effect of nanoscale size and morphology on the electrochemical performance is presented.
Journal ArticleDOI
Nanostructured electrodes for lithium-ion and lithium-air batteries: the latest developments, challenges, and perspectives
TL;DR: In this paper, the authors provide an overview of the critical scientific challenges facing the development of advanced batteries, various unique attributes of nanostructures or nano-architectures applicable to lithium-ion and lithium-air batteries, the latest developments in novel synthesis and fabrication procedures, the unique capabilities of some powerful, in situ characterization techniques vital to unraveling the mechanisms of charge and mass transport processes associated with battery performance, and the outlook for future-generation batteries that exploit nanoscale materials for significantly improved performance to meet the everincreasing demands of emerging technologies.
Journal ArticleDOI
Anisotropic nanomaterials: structure, growth, assembly, and functions
TL;DR: This review presents an overview of current research in the area of anisotropic nanomaterials in general and noble metal nanoparticles in particular, with an introduction to the advancements in this area followed by general aspects of the growth ofanisotropic nanoparticles.