Radiation-chemical production and lifetimes of trialkoxymethyl carbocations in aqueous solution

1986 ◽  
Vol 108 (11) ◽  
pp. 2808-2813 ◽  
Author(s):  
S. Steenken ◽  
J. Buschek ◽  
R. A. McClelland
Keyword(s):  
Aqueous Solution ◽  
Chemical Production ◽  
Radiation Chemical

One-electron reduction of tris(2,2'-bipyrimidine)ruthenium(2+) ion in aqueous solution: a photochemical, radiation chemical, and electrochemical study

1989 ◽  
Vol 93 (16) ◽  
pp. 6080-6088 ◽  
Author(s):  
Gilda Neshvad ◽  
Morton Z. Hoffman ◽  
Quinto G. Mulazzani ◽  
Margherita Venturi ◽  
Mauro Ciano ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Electrochemical Study ◽  
Radiation Chemical ◽  
Electron Reduction

Radiation Chemical Studies of Azodicarbonamide in Aqueous Solution

1977 ◽  
Vol 70 (2) ◽  
pp. 325 ◽  
Author(s):  
P. Neta ◽  
D. W. Whillans
Keyword(s):  
Aqueous Solution ◽  
Radiation Chemical ◽  
Chemical Studies

Effect of Irradiation on the Molecular Weight, Structure and Apparent Viscosity of Xanthan Gum in Aqueous Solution

2011 ◽  
Vol 239-242 ◽  
pp. 2632-2637 ◽  
Author(s):  
Yan Jie Li ◽  
Yi Ming Ha ◽  
Feng Wang ◽  
Yong Fu Li
Keyword(s):  
Aqueous Solution ◽  
Molecular Weight ◽  
Apparent Viscosity ◽  
Irradiation Dose ◽  
Xanthan Gum ◽  
Gel Permeation Chromatography ◽  
Uv Spectra ◽  
X Ray Diffraction ◽  
Γ Irradiation ◽  
Radiation Chemical

Xanthan gum samples were irradiated in aqueous solution at different doses (0-120 kGy) of 60Co γ-rays. The changes of molecular weight and structures of irradiated xanthan gum samples were investigated and characterized by using gel permeation chromatography(GPC), X-ray diffraction (XRD), fourier-transform infrared spectra (FTIR), ultraviolet–visible spectral (UV–vis) analysis and rheometer. Results showed the molecular weight decreased gradually with increasing irradiation dose. The radiation chemical yields G(d) of xanthan gum was 26.55. FTIR spectra and XRD indicated that γ-irradiation introduced no significant changes into the structure and crystal texture, but UV spectra showed a distinct absorption peak at about 265 nm, increasing with irradiation dose, which was attributed to the formation of carbonyl groups or double bond. Apparent viscosity of xanthan gum solution decreased with increasing irradiation dose and remain basically constant with the prolonging of shear time after irradiation.

Photo- and Radiation-Chemical Formation and Electrophilic and Electron Transfer Reactivities of Enolether Radical Cations in Aqueous Solution

2001 ◽  
Vol 7 (21) ◽  
pp. 4640-4650 ◽  
Author(s):  
Klaus Bernhard ◽  
Judith Geimer ◽  
Moises Canle-Lopez ◽  
Johannes Reynisson ◽  
Dieter Beckert ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Electron Transfer ◽  
Radical Cations ◽  
Radiation Chemical
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