Synergistic Effect of Inorganic and Organic Components on Solid Acid/Base Properties of Organosiloxane-Based Inorganic-Organic Hybrid Materials

2005 ◽  
Vol 17 (21) ◽  
pp. 2596-2599 ◽  
Author(s):  
S. Katayama ◽  
Y. Nonaka ◽  
K. Iwata ◽  
Y. Kubo ◽  
N. Yamada
Keyword(s):  
Synergistic Effect ◽  
Hybrid Materials ◽  
Solid Acid ◽  
Acid Base ◽  
Organic Hybrid ◽  
Organic Components ◽  
Inorganic And Organic ◽  
Base Properties

Characterization of a New Titanium Dioxide-Polymer Nanocomposite Material for Electronic Packaging Using Light Scattering Spectroscopy

2008 ◽  
Author(s):  
B. R. Dantal ◽  
S. Gupta ◽  
A. Saigal ◽  
M. A. Zimmerman ◽  
I. Georgakoudi
Keyword(s):  
Light Scattering ◽  
Hybrid Materials ◽  
Polymer Nanocomposite ◽  
Organic Polymer ◽  
Scattering Efficiency ◽  
Material Development ◽  
Organic Hybrid ◽  
Base Polymer ◽  
Inorganic And Organic

During the last decade there has been a great progress in the field of inorganic and organic hybrid material development and characterization techniques. Mechanical, optical and electrical properties of these hybrid materials heavily depend upon the percentage composition of inorganic and organic components of these hybrid materials [1–3]. Generally, inorganic particle distribution in the organic polymer is characterized using Scanning Electron Microscopy. In this paper we introduce an optics based technique for composite materials characterization. In our research, Titania pigments are used in molding compounds to improve opacity by increasing scattering efficiency of the medium. The light scattering efficiency of the samples is found to be increasing with the addition of Titania particles in the base polymer. This systematic increase of light scattering is attributed to the surface morphology, variation of refractive index due to addition of Titania particles.

Acid-base properties of 1,3-diphenyl-5-(1H-tetrazol-2-yl)formazan and 1,3-diphenyl-5-(2H-1,2,4-triazol-3-yl)formazan

1982 ◽  
Vol 47 (11) ◽  
pp. 2882-2889
Author(s):  
Nadezhda Likhareva ◽  
Ladislav Šůcha ◽  
Miloslav Suchánek
Keyword(s):  
Computer Program ◽  
Dissociation Constants ◽  
Acid Base ◽  
New Compounds ◽  
Base Properties

Two new compounds from the formazan series, viz. 1,3-diphenyl-5-(1H-tetrazol-2-yl)formazan and 1,3-diphenyl-5-(2H-1,2,4-triazol-3-yl)formazan, were prepared, and the dissociation constants and molar absorptivities of all of their acid-base species were determined spectrophotometrically employing the SPEKTFOT computer program.

Acid-base properties of metals and glasses of Na2O.P2O5-xB2O3 system

1984 ◽  
Vol 49 (10) ◽  
pp. 2355-2362 ◽  
Author(s):  
Juraj Leško ◽  
Marie Dorušková ◽  
Jan Tržil
Keyword(s):  
Boron Oxide ◽  
A Priori ◽  
Optical Basicity ◽  
Galvanic Cell ◽  
Acid Base ◽  
Tetrahedral Configuration ◽  
Relative Basicity ◽  
Base Theory ◽  
Base Properties

Boron oxide in the Na2O.P2O5-x B2O3 system behaves as a Lux base. Its addition to Na2O.P2O5 brings about transformation of a Co(II) indicator from octahedral to tetrahedral configuration, increase in the optical basicity ΛPb(II), increase in the relative basicity of the melt as determined by means of a galvanic cell, and depolymerization reactions releasing PO43- ions. In the Na2O-B2O3 system free of P2O5, boron oxide behaves as a Lux acid. The amphoretic nature of B2O3 is explained in terms of Lux's acid-base theory extended in analogy with the protolysis theory. The theoretical optical basicity values do not indicate the amphoretic behaviour of B2O3 because in this approach boron oxide is a priori regarded as more acidic than Na2O.P2O5.

Acid-base properties and supramolecular structure ofN-[(hydroxymethyl)triazolyl]triflamides: DFT, ab initio, and FTIR study

2016 ◽  
Vol 30 (5) ◽  
pp. e3623 ◽  
Author(s):  
Bagrat A. Shainyan ◽  
Nina N. Chipanina ◽  
Larisa P. Oznobikhina ◽  
Vladimir I. Meshcheryakov
Keyword(s):  
Ab Initio ◽  
Supramolecular Structure ◽  
Acid Base ◽  
Ftir Study ◽  
Base Properties
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