Fabrication of transparent conductive carbon nanotubes/polyurethane-urea composite films by solvent evaporation-induced self-assembly (EISA)

2009 ◽  
Vol 69 (5) ◽  
pp. 645-650 ◽  
Author(s):  
Ho Seung Ki ◽  
Jeong Hyun Yeum ◽  
Soonja Choe ◽  
Jung Hyun Kim ◽  
In Woo Cheong
Langmuir ◽  
2010 ◽  
Vol 26 (22) ◽  
pp. 16730-16736 ◽  
Author(s):  
Changchun Zheng ◽  
Xinjun Xu ◽  
Fang He ◽  
Lidong Li ◽  
Bin Wu ◽  
...  

Polymers ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 4389
Author(s):  
Xiao Xiao ◽  
Jie Chen ◽  
Zhe Ling ◽  
Jiaqi Guo ◽  
Jianbin Huang ◽  
...  

The exploration of functional materials relies greatly on the understanding of material structures and nanotechnologies. In the present work, chiral nematic cellulose nanocrystal (CNC) films were prepared by incorporation with four types of amino acids (AAs, glycine, histidine, phenylalanine, and serine) via evaporation-induced self-assembly. The films present ideal iridescence and birefringence that can be tuned by the amount of AAs added. The intercalation of AAs enlarged the pitch values, contributing to the red-shift trend of the reflective wavelength. Among the AAs, serine presented the most compatible intercalation into cellulose crystals. Interestingly, histidine and phenylalanine composite films showed high shielding capabilities of UV light in diverse wavelength regions, exhibiting multi-optical functions. The sustainable preparation of chiral nematic CNC films may provide new strategies for materials production from biocompatible lignocellulose.


RSC Advances ◽  
2017 ◽  
Vol 7 (49) ◽  
pp. 30521-30532 ◽  
Author(s):  
Zhu Li ◽  
Kunkun Guo ◽  
Xuli Chen

Nitrogen-doped mesoporous carbons have been controllably synthesized through a solvent evaporation induced self-assembly method. The carbons show 70% of the capacitor retained at current density of 50 A g−1 and no capacitance loss over 5000 cycles.


2019 ◽  
Vol 7 (44) ◽  
pp. 13896-13903 ◽  
Author(s):  
Shuaishuai Zhou ◽  
Tongle Xu ◽  
Fang Jiang ◽  
Na Song ◽  
Liyi Shi ◽  
...  

In this study, we report a flexible polyamide-imide (PAI)/boron nitride nanosheet (BNNS) composite film with improved thermal conductivity by doping boron nitride quantum dots (BNQDs) using an evaporation-induced self-assembly method.


2001 ◽  
Vol 672 ◽  
Author(s):  
Kui Yu ◽  
Celeste A. Drewien ◽  
Alan J. Hurd ◽  
C. Jeffrey Brinker ◽  
Adi Eisenberg

ABSTRACTIntermediate structures were trapped during the mesophase transition from lamellae to higher curvature structures in a sol-gel matrix. The target structures included normal hexagonally arranged cylinders and/or normal spheres in a cubic array distributed in a hydrophilic matrix. The present system is believed to be the first to trap these intermediates. Through solvent evaporation-induced self-assembly (EISA), mesostructured silica/diblock films with large characteristic length scales were prepared. The structure-directing agents were polystyrene-block-poly(ethylene oxide) (PS-b-PEO) diblock copolymers with high molecular weight, which are water insoluble and alcohol insoluble. We believe that no micellization took place in the present system; a disorder-to-order transition occurred due to the cooperative self- assembly of the diblock and silicates as the solvent preferentially evaporated from a film cast from a dilute homogeneous solution. During further preferential evaporation, the morphogenic effect of the increase of species concentration facilitates the mesophase development in the direction of a normal cubic to hexagonal to lamellar pathway. However, the morphogenic effects of both the decrease of the PS coil dimension and the siloxane condensation drive the mesophase development in opposite directions. The decrease of the PS coil dimension plays an important role in the present self-assembly process. Trapping of the intermediates and coexisting multiple mesophases are related to the facts that PS has high Tg and high hydrophobicity in particular, as well as to the fact that polymers have relatively low mobility in general.


Langmuir ◽  
2017 ◽  
Vol 33 (38) ◽  
pp. 9889-9896 ◽  
Author(s):  
Yuqing Wu ◽  
Ke Wang ◽  
Haiying Tan ◽  
Jiangping Xu ◽  
Jintao Zhu

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