The Effect of Inorganic Salt on the Morphology and Nucleation of Polyaniline

Abstract Polyaniline nanofibers were fabricated through the addition of inorganic salt such as NaCl, MgSO4 and AlCl3 into the micelle-like composed of aniline and camphor sulfonic acid (CSA). The influence of types and concentration of inorganic salts, doped acids and temperature on polyaniline was studied by TEM, Uv-vis and FTIR spectroscopy. In addition, in situ Uv-vis and 1H NMR were applied to observe the process of aniline polymerization, and it was indicated the polymerization rate of aniline changed after the addition of inorganic salt NaCl into the initial solution.

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Synthesis of polyaniline/camphor sulfonic acid in formic acid medium and their blends with polyamide-6 by in situ polymerization

Synthetic Metals ◽

10.1016/j.synthmet.2009.04.006 ◽

2009 ◽

Vol 159 (14) ◽

pp. 1491-1495 ◽

Cited By ~ 18

Author(s):

Anderson R.A. Schettini ◽

Rosa C.D. Peres ◽

Bluma G. Soares

Keyword(s):

Formic Acid ◽

Acid Medium ◽

Sulfonic Acid ◽

In Situ Polymerization ◽

Polyamide 6 ◽

Camphor Sulfonic Acid

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Electron Microscopy of Mycoplasma Pneumoniae

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100065341 ◽

1971 ◽

Vol 29 ◽

pp. 258-259 ◽

Cited By ~ 1

Author(s):

E. S. Boatman ◽

G. E. Kenny

Keyword(s):

Electron Microscopy ◽

Light Microscopy ◽

Growth Phase ◽

Hela Cells ◽

Sulfonic Acid ◽

Gamma Globulin ◽

Horse Serum ◽

Morphological Aspects ◽

The Family

Information concerning the morphology and replication of organism of the family Mycoplasmataceae remains, despite over 70 years of study, highly controversial. Due to their small size observations by light microscopy have not been rewarding. Furthermore, not only are these organisms extremely pleomorphic but their morphology also changes according to growth phase. This study deals with the morphological aspects of M. pneumoniae strain 3546 in relation to growth, interaction with HeLa cells and possible mechanisms of replication.The organisms were grown aerobically at 37°C in a soy peptone yeast dialysate medium supplemented with 12% gamma-globulin free horse serum. The medium was buffered at pH 7.3 with TES [N-tris (hyroxymethyl) methyl-2-aminoethane sulfonic acid] at 10mM concentration. The inoculum, an actively growing culture, was filtered through a 0.5 μm polycarbonate “nuclepore” filter to prevent transfer of all but the smallest aggregates. Growth was assessed at specific periods by colony counts and 800 ml samples of organisms were fixed in situ with 2.5% glutaraldehyde for 3 hrs. at 4°C. Washed cells for sectioning were post-fixed in 0.8% OSO4 in veronal-acetate buffer pH 6.1 for 1 hr. at 21°C. HeLa cells were infected with a filtered inoculum of M. pneumoniae and incubated for 9 days in Leighton tubes with coverslips. The cells were then removed and processed for electron microscopy.

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On the adsorption and reduction of NO−3 ions at Au and Pt electrodes studied by in situ FTIR spectroscopy

Journal of Electroanalytical Chemistry ◽

10.1016/s0022-0728(96)04697-9 ◽

1996 ◽

Vol 414 (2) ◽

pp. 163-170 ◽

Cited By ~ 27

Author(s):

M.C.P.M. da Cunha ◽

M. Weber ◽

F.C. Nart

Keyword(s):

Ftir Spectroscopy ◽

In Situ Ftir ◽

Reduction Of No ◽

In Situ Ftir Spectroscopy ◽

Pt Electrodes

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Depression of freezing temperature of water and water solutions in porous materials

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19892644 ◽

1989 ◽

Vol 54 (10) ◽

pp. 2644-2647 ◽

Cited By ~ 1

Author(s):

Petr Schneider ◽

Jiří Rathouský

Keyword(s):

Water Vapor ◽

Porous Materials ◽

Inorganic Salt ◽

Freezing Point ◽

Freezing Temperature ◽

Inorganic Salts ◽

Freezing Point Depression ◽

Salt Solutions ◽

Water Solutions

In porous materials filled with water or water solutions of inorganic salts, water freezes at lower temperatures than under normal conditions; the reason is the decrease of water vapor tension above the convex meniscus of liquid in pores. The freezing point depression is not very significant in pores with radii from 0.05 μm to 10 μm (about 0.01-2.5 K). Only in smaller pores, especially when filled with inorganic salt solutions, this depression is important.

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Mechanistische Untersuchungen zum reversiblen Gleichgewicht von metallorganischen Tripeldecker- und Sandwichkomplexen des Typs [Bis{(η5-CpR)Co}-μ-{η4:η4-aren}] und [(η5-CpR)Co(η6-aren)] / Mechanistic Studies towards the Reversible Equilibrium between Metal Organic Triple Decker and Sandwich Complexes [Bis{(η5 -CpR)Co}-μ-{η4 :η4-arene}] and [{(η5-CpR)Co(η6-arene)]

Zeitschrift für Naturforschung B ◽

10.1515/znb-1998-1105 ◽

1998 ◽

Vol 53 (11) ◽

pp. 1267-1272 ◽

Cited By ~ 8

Author(s):

Jörg J. Schneider ◽

Dirk Wolf

Keyword(s):

Ligand Exchange ◽

Sandwich Complexes ◽

Valuable Metal ◽

H Nmr ◽

Synthetic Utility ◽

Metal Organic ◽

Arene Ligand ◽

Benzene Toluene

The arene ligand exchange mechanism of slipped arene triple deckers [Bis{(η5-CpR)Co}-μ-{η4:η4-arene}] (R = Me5, 1,2,4 tri-tert butyl, arene = benzene, toluene) 1 was studied by 1H-NMR spectroscopy for different concentrations and solvents. It has been found that triple deckers of type 1 decompose slowly in solution. A unique equilibrium, between these triple deckers and the mixed sandwich complexes [(η6-arene)Co(η5-CpR)] and 14 e [(η5-Cp)Co]solv fragments generated in situ by decomposition o f 1 exists. In addition to this equilibrium arene lability of the thus formed mixed sandwich complex type has been detected by NMR making slipped triple deckers 1 ideal single source compounds for the generation of two [(η5-Cp)Co] fragments in one reaction step. Such fragments are valuable metal ligand components with high synthetic utility in organometallic chemistry.

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