SPECTROSCOPIC STUDIES OF CHEMICAL REACTIONS IN THE SOLID STATE

1969 ◽  
Author(s):  
I. C. Hisatsune
Keyword(s):  
Solid State ◽  
Chemical Reactions ◽  
Spectroscopic Studies

scholarly journals Inkjet Printing of Polypyrrole Electroconductive Layers Based on Direct Inks Freezing and Their Use in Textile Solid-State Supercapacitors

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3577
Author(s):  
Zbigniew Stempien ◽  
Mohmmad Khalid ◽  
Marcin Kozanecki ◽  
Paulina Filipczak ◽  
Angelika Wrzesińska ◽  
...  
Keyword(s):  
Solid State ◽  
Inkjet Printing ◽  
Surface Resistance ◽  
Spectroscopic Studies ◽  
Polymerization Temperature ◽  
Textile Fabrics ◽  
Symmetric Supercapacitor ◽  
Novel Method ◽  
A Current ◽  
Standard Support

In this work, we propose a novel method for the preparation of polypyrrole (PPy) layers on textile fabrics using a reactive inkjet printing technique with direct freezing of inks under varying temperature up to −16 °C. It was found that the surface resistance of PPy layers on polypropylene (PP) fabric, used as a standard support, linearly decreased from 6335 Ω/sq. to 792 Ω/sq. with the decrease of polymerization temperature from 23 °C to 0 °C. The lowest surface resistance (584 Ω/sq.) of PPy layer was obtained at −12 °C. The spectroscopic studies showed that the degree of the PPy oxidation as well as its conformation is practically independent of the polymerization temperature. Thus, observed tendences in electrical conductivity were assigned to change in PPy layer morphology, as it is significantly influenced by the reaction temperature: the lower the polymerization temperature the smoother the surface of PPy layer. The as-coated PPy layers on PP textile substrates were further assembled as the electrodes in symmetric all-solid-state supercapacitor devices to access their electrochemical performance. The electrochemical results demonstrate that the symmetric supercapacitor device made with the PPy prepared at −12 °C, showed the highest specific capacitance of 72.3 F/g at a current density of 0.6 A/g, and delivers an energy density of 6.12 Wh/kg with a corresponding power density of 139 W/kg.

scholarly journals Fuzzy complexes of myelin basic protein: NMR spectroscopic investigations of a polymorphic organizational linker of the central nervous systemThis paper is one of a selection of papers published in this special issue entitled “Canadian Society of Biochemistry, Molecular & Cellular Biology 52nd Annual Meeting — Protein Folding: Principles and Diseases” and has undergone the Journal's usual peer review process.

2010 ◽  
Vol 88 (2) ◽  
pp. 143-155 ◽  
Author(s):  
David S. Libich ◽  
Mumdooh A.M. Ahmed ◽  
Ligang Zhong ◽  
Vladimir V. Bamm ◽  
Vladimir Ladizhansky ◽  
...  
Keyword(s):  
Solid State ◽  
Myelin Basic Protein ◽  
Solid State Nmr ◽  
Basic Protein ◽  
Peer Review Process ◽  
Protein Nmr ◽  
Spectroscopic Studies ◽  
Intrinsically Disordered ◽  
The Central Nervous System ◽  
Structural Homeostasis

The classic 18.5 kDa isoform of myelin basic protein (MBP) is central to maintaining the structural homeostasis of the myelin sheath of the central nervous system. It is an intrinsically disordered, promiscuous, multifunctional, peripheral membrane protein, whose conformation adapts to its particular environment. Its study requires the selective and complementary application of diverse approaches, of which solution and solid-state NMR spectroscopy are the most powerful to elucidate site-specific features. We review here several recent solution and solid-state NMR spectroscopic studies of 18.5 kDa MBP, and the induced partial disorder-to-order transitions that it has been demonstrated to undergo when complexed with calmodulin, actin, and phospholipid membranes.

A Newly Designed Cryostat for Absorption Spectroscopic Studies of Liquids, Solids, and the Interphases

1988 ◽  
Vol 42 (8) ◽  
pp. 1401-1404 ◽  
Author(s):  
J. C. Cornut ◽  
P. V. Huong ◽  
A. Graja ◽  
G. Daleau
Keyword(s):  
Solid State ◽  
Absorption Spectroscopy ◽  
Thermal Convection ◽  
Spectroscopic Studies ◽  
Sample Cell ◽  
Cold Stream ◽  
Uv Visible ◽  
Freezing Chamber

A double jacket cryostat based on thermal convection between a gaseous cold stream filled in a freezing chamber and the sample cell is described. This device is designed for absorption spectroscopy in the infrared and in the UV-visible regions for gases, liquids, liquefied gases, and solids, as well as for the transitions between these phases or between phases in the solid state, over the range 85 to 340 K, at variable thicknesses and under a pressure of up to 10 bars.

ChemInform Abstract: Structures, Spectroscopic Studies and Solid-State Thermal Transformations of Coordination Polymers from P4Se3 and CuX (X: Cl, Br, I).

ChemInform ◽  
2011 ◽  
Vol 42 (42) ◽  
pp. no-no
Author(s):  
Andreas Biegerl ◽  
Christian Groeger ◽  
Hans R. Kalbitzer ◽  
Arno Pfitzner ◽  
Joachim Wachter ◽  
...  
Keyword(s):  
Solid State ◽  
Coordination Polymers ◽  
Spectroscopic Studies ◽  
Thermal Transformations

Solid-state oxygen-17 nuclear magnetic resonance spectroscopic studies of alkaline earth metasilicates

1987 ◽  
Vol 91 (5) ◽  
pp. 1054-1058 ◽  
Author(s):  
Hye Kyung C. Timken ◽  
Suzanne E. Schramm ◽  
R. James. Kirkpatrick ◽  
Eric. Oldfield
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Alkaline Earth ◽  
Spectroscopic Studies ◽  
Nuclear Magnetic

Latency control of chemical reactions in polymerization of epoxy resins using a hydrogen bonding network

CrystEngComm ◽  
2021 ◽  
Author(s):  
Tsuyoshi Haneda ◽  
Shinya Matsuno ◽  
Hisanao Yamamoto ◽  
Hiroyoshi Ohtsu ◽  
Masaki Kawano
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Chemical Reactions ◽  
Epoxy Resins ◽  
Molecular Design ◽  
Epoxy Curing ◽  
Curing Agents ◽  
Hydrogen Bonding Network

Latency control on the basis of molecular design of a solid state by introducing hydrogen bonding into epoxy curing agents.

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