Kinetics of the etherification of phenol alcohols. I. Effect of structure of the phenol alcohol on the rate of etherification

1966 ◽  
Vol 31 (7) ◽  
pp. 2714-2726 ◽  
Author(s):  
J. Kolínský ◽  
M. Vašta ◽  
R. Chromeček ◽  
M. Bohdanecký
Keyword(s):  
Kinetics Of ◽  
Effect Of Structure

The Effect of Structure and Imbibition Mode on the Rehydration Kinetics of Freeze-dried Carrots

2013 ◽  
pp. 112-121 ◽  
Author(s):  
F.J. Vergeldt ◽  
A.J. Duijster ◽  
R.G.M. van der Sman ◽  
A. Voda ◽  
S. Khalloufi ◽  
...  
Keyword(s):  
Freeze Dried ◽  
Kinetics Of ◽  
Effect Of Structure

Solid state amorphization in Ni–Ti systems: the effect of structure on the kinetics of interface and grain-boundary amorphization

1998 ◽  
Vol 46 (15) ◽  
pp. 5491-5508 ◽  
Author(s):  
R. Benedictus ◽  
K. Han ◽  
C. TrÆholt ◽  
A. Böttger ◽  
E.J. Mittemeijer
Keyword(s):  
Solid State ◽  
Grain Boundary ◽  
Kinetics Of ◽  
State Amorphization ◽  
Effect Of Structure

scholarly journals The kinetics of the interaction of atomic hydrogen with olefines IV. Results obtained by the foregoing techniques

1949 ◽  
Vol 196 (1047) ◽  
pp. 494-509 ◽  
Keyword(s):  
Double Bond ◽  
Hydrogen Atom ◽  
Atomic Hydrogen ◽  
Experimental Techniques ◽  
Effective Diameter ◽  
Collision Efficiency ◽  
Ethylene Propylene ◽  
Theoretical Considerations ◽  
Kinetics Of ◽  
Effect Of Structure

The experimental techniques and theoretical considerations developed in the previous parts have been utilized in obtaining data on the reactions of the type H + C n H 2 n = C n H 2 n +1 . The olefines used were ethylene, propylene, iso -butene, n -pentene-2 ( cis ), and 2, 3, 3, tri-methyl-butene-1. Certain tentative suggestions as to the effect of structure on the reactivity of the double bond are put forward, but in general, the collision efficiency of a hydrogen atom with an olefine lies between 10 –3 and 10 –4 . It is noted that in the computation of the collision efficiency, it seems to be rather unsatisfactory that the diameter of the whole molecule should be used and it is suggested that perhaps the effective diameter of a more intimate part of the molecule in the region of the double bond should be employed.

The effect of structure on kinetics of the acid hydrolysis of nitro-2-pyridyl dipeptides

1967 ◽  
Vol 32 (4) ◽  
pp. 1135-1139 ◽  
Author(s):  
Angelo Signor ◽  
Emilio Bordignon ◽  
Giorgio Vidali
Keyword(s):  
Acid Hydrolysis ◽  
Kinetics Of ◽  
Hydrolysis Of ◽  
Effect Of Structure

Effect of structure on the kinetics of the nucleophilic substitution of acylonium ions

1998 ◽  
Vol 34 (2) ◽  
pp. 86-92
Author(s):  
V. I. Rybachenko ◽  
G. Schroeder ◽  
K. Yu. Chotii ◽  
V. V. Kovalenko
Keyword(s):  
Nucleophilic Substitution ◽  
Kinetics Of ◽  
Effect Of Structure

Effect of structure on the creep failure kinetics of steel 12Kh1MF

1989 ◽  
Vol 31 (7) ◽  
pp. 521-525
Author(s):  
N. V. Elpanova ◽  
T. G. Berezina
Keyword(s):  
Creep Failure ◽  
Steel 12Kh1mf ◽  
Kinetics Of ◽  
Effect Of Structure

Direct observations of radiation-enhanced transformations in glass

1983 ◽  
Vol 41 ◽  
pp. 354-355
Author(s):  
J. F. DeNatale ◽  
D. G. Howitt
Keyword(s):  
Glass Matrix ◽  
Diffusion Mechanism ◽  
Bubble Formation ◽  
Silicate Glasses ◽  
Phase Decomposition ◽  
Direct Observations ◽  
Thin Foils ◽  
Oxygen Bubble ◽  
Electron Energy Loss ◽  
Kinetics Of

The electron irradiation of silicate glasses containing metal cations produces various types of phase separation and decomposition which includes oxygen bubble formation at intermediate temperatures figure I. The kinetics of bubble formation are too rapid to be accounted for by oxygen diffusion but the behavior is consistent with a cation diffusion mechanism if the amount of oxygen in the bubble is not significantly different from that in the same volume of silicate glass. The formation of oxygen bubbles is often accompanied by precipitation of crystalline phases and/or amorphous phase decomposition in the regions between the bubbles and the detection of differences in oxygen concentration between the bubble and matrix by electron energy loss spectroscopy cannot be discerned (figure 2) even when the bubble occupies the majority of the foil depth.The oxygen bubbles are stable, even in the thin foils, months after irradiation and if van der Waals behavior of the interior gas is assumed an oxygen pressure of about 4000 atmospheres must be sustained for a 100 bubble if the surface tension with the glass matrix is to balance against it at intermediate temperatures.

Irradiation behavior of pyrolytic silicon carbide

1983 ◽  
Vol 41 ◽  
pp. 72-73
Author(s):  
R. J. Lauf
Keyword(s):  
Silicon Carbide ◽  
Fission Products ◽  
Thermodynamics And Kinetics ◽  
Neutron Fluences ◽  
Fuel Particles ◽  
Sic Coatings ◽  
Irradiation Behavior ◽  
Kinetics Of ◽  
Htgr Fuel

Fuel particles for the High-Temperature Gas-Cooled Reactor (HTGR) contain a layer of pyrolytic silicon carbide to act as a miniature pressure vessel and primary fission product barrier. Optimization of the SiC with respect to fuel performance involves four areas of study: (a) characterization of as-deposited SiC coatings; (b) thermodynamics and kinetics of chemical reactions between SiC and fission products; (c) irradiation behavior of SiC in the absence of fission products; and (d) combined effects of irradiation and fission products. This paper reports the behavior of SiC deposited on inert microspheres and irradiated to fast neutron fluences typical of HTGR fuel at end-of-life.

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