Design, Syntheses, and Studies of Supramolecular Porphyrin−Fullerene Conjugates, Using Bis-18-crown-6 Appended Porphyrins and Pyridine or Alkyl Ammonium Functionalized Fullerenes

2006 ◽  
Vol 110 (12) ◽  
pp. 5905-5913 ◽  
Author(s):  
Francis D'Souza ◽  
Raghu Chitta ◽  
Suresh Gadde ◽  
Amy L. McCarty ◽  
Paul A. Karr ◽  
...  
Keyword(s):  
Functionalized Fullerenes ◽  
Alkyl Ammonium

Turing Pattern Formation by the CIMA Reaction in a Chemical System Consisting of Quaternary Alkyl Ammonium Cationic Groups

2011 ◽  
Vol 115 (14) ◽  
pp. 3959-3963 ◽  
Author(s):  
Kouichi Asakura ◽  
Ryo Konishi ◽  
Tomomi Nakatani ◽  
Takaya Nakano ◽  
Masazumi Kamata
Keyword(s):  
Pattern Formation ◽  
Chemical System ◽  
Turing Pattern ◽  
Alkyl Ammonium ◽  
Cima Reaction

scholarly journals Spontaneous intercalation of long-chain alkyl ammonium into edge-selectively oxidized graphite to efficiently produce high-quality graphene

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Liangming Wei ◽  
Fei Wu ◽  
Diwen Shi ◽  
Changchen Hu ◽  
Xiaolin Li ◽  
...  
Keyword(s):  
High Quality ◽  
Oxidized Graphite ◽  
Alkyl Ammonium ◽  
Long Chain

scholarly journals Comparison of the Performances of Different Computational Methods to Calculate the Electrochemical Stability of Selected Ionic Liquids

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3221
Author(s):  
Annalisa Paolone ◽  
Sergio Brutti
Keyword(s):  
Ionic Liquids ◽  
Density Functional ◽  
Quantitative Agreement ◽  
Electrochemical Stability ◽  
Functional Theory ◽  
Molecular Systems ◽  
Reduction Potentials ◽  
Adiabatic Transitions ◽  
Alkyl Ammonium ◽  
Transition Scheme

The electrochemical stability windows (ESW) of selected ionic liquids have been calculated by comparing different computational approaches previously suggested in the literature. The molecular systems under study are based on di-alkyl imidazolium and tetra-alkyl ammonium cations coupled with two different imide anions (namely, bis-fluorosulfonyl imide and bis-trifluoromethyl sulfonyl imide), for which an experimental investigation of the ESW is available. Thermodynamic oxidation and reduction potentials have here been estimated by different models based on calculations either on single ions or on ionic couples. Various Density Functional Theory (DFT) functionals (MP2, B3LYP, B3LYP including a polarizable medium and empirical dispersion forces) were exploited. Both vertical and adiabatic transitions between the starting states and the oxidized or reduced states were considered. The approach based on calculations on ionic couples is not able to reproduce the experimental data, whatever the used DFT functional. The best quantitative agreement is obtained by calculations on single ions when the MP2 functional in vacuum is considered and the transitions between differently charged states are vertical (purely electronic without the relaxation of the structure). The B3LYP functional underestimates the ESW. The inclusion of a polar medium excessively widens the ESW, while a large shrinkage of the ESW is obtained by adopting an adiabatic transition scheme instead of a vertical transition one.

Simultaneous removal of Zn2+ and p-nitrophenol from wastewater using nanocomposites of montmorillonite with alkyl-ammonium and complexant

2021 ◽  
pp. 111496
Author(s):  
Guifang Wang ◽  
Huizhen Xiao ◽  
Jinliang Zhu ◽  
Hongyuan Zhao ◽  
Kun Liu ◽  
...  
Keyword(s):  
Simultaneous Removal ◽  
Alkyl Ammonium

scholarly journals Study Structure and Properties of Nanocomposite Material Based on Unsaturated Polyester with Clay Modified by Poly(ethylene oxide)

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Tran Duy Thanh ◽  
Nguyen Dang Mao ◽  
Nguyen Thi Kim Ngan ◽  
Ha Thuc Chi Nhan ◽  
Ha Thuc Huy ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Polymer Matrix ◽  
Unsaturated Polyester ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Poly Ethylene Oxide ◽  
Hydrophobic Nature ◽  
Poly Ethylene ◽  
Alkyl Ammonium

In recent years, polymer clay nanocomposites have been attracting considerable interests in polymers science because of their advantages. There are many scientists who researched about this kind of material and demonstrated that when polymer matrix was added to little weight of clay, properties were enhanced considerably. Because clay is a hydrophilic substance so it is difficult to use as filler in polymer matrix having hydrophobic nature, so clay needs to be modified to become compatible with polymer. In this study, poly(ethylene oxide) was used as a new modifier for clay to replace some traditional ionic surfactants such as primary, secondary, tertiary, and quaternary alkyl ammonium or alkylphosphonium cations having the following disadvantages: disintegrate at high temperature, catalyze polymer degradation, and make nanoproducts colorific, and so forth. In order to evaluate modifying effect of poly(ethylene oxide), modified clay products were characterize d by X-ray spectrum. Then organoclay was used to prepare nanocomposite based on unsaturated polyester. Morphology and properties of nanocomposites were measure d by X-ray diffraction, transmission electron microscopy, tensile strength, and thermal stability. The results showed that clay galleries changed to intercalated state in the nanocomposites. Properties of nanocomposites were improved a lot when the loading of the organoclay was used at 1 phr.

Effect of Triclosan on Self-Assembly of Alkyl Ammonium Surfactants Adsorbed within Montmorillonite Galleries in Silicone Elastomer Composites

2014 ◽  
Vol 338 (1) ◽  
pp. 45-53
Author(s):  
Christopher M. Liauw ◽  
Rebecca L. Taylor ◽  
Lindsey J. Munro ◽  
Arthur N. Wilkinson ◽  
Onanong Cheerarot
Keyword(s):  
Self Assembly ◽  
Silicone Elastomer ◽  
Elastomer Composites ◽  
Alkyl Ammonium

scholarly journals Rapid combinatorial screening of inkjet-printed alkyl-ammonium cations in perovskite solar cells

2016 ◽  
Vol 164 ◽  
pp. 472-475 ◽  
Author(s):  
Monojit Bag ◽  
Ziwen Jiang ◽  
Lawrence A. Renna ◽  
Seung Pyo Jeong ◽  
Vincent M. Rotello ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Combinatorial Screening ◽  
Alkyl Ammonium

Self-assembly of functionalized fullerenes

1999 ◽  
Vol 102 (1-3) ◽  
pp. 1487 ◽  
Author(s):  
H. Hong ◽  
D. Davidov ◽  
C. Kallinger ◽  
U. Lemmer ◽  
J. Feldmann ◽  
...  
Keyword(s):  
Self Assembly ◽  
Functionalized Fullerenes
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