Excess volumes for binary mixtures of n-butyl methyl ether with n-alkanes at 298.15 K

1990 ◽  
Vol 35 (3) ◽  
pp. 242-244 ◽  
Author(s):  
Luo Wang ◽  
George C. Benson ◽  
Benjamin C. Y. Lu
Keyword(s):  
Binary Mixtures ◽  
Methyl Ether ◽  
Excess Volumes ◽  
Butyl Methyl Ether

Excess volumes and refractive indices in the benzene-tert-amyl methyl ether and cyclohexane-tert-amyl methyl ether systems at 298.15 K

1987 ◽  
Vol 52 (12) ◽  
pp. 2839-2843 ◽  
Author(s):  
Jan Linek
Keyword(s):  
Methyl Ether ◽  
Excess Molar Volumes ◽  
Excess Volumes ◽  
Refractive Indices ◽  
Molar Volumes ◽  
Vibrating Tube Densimeter ◽  
Ether System

Excess molar volumes in the benzene-tert-amyl methyl ether and cyclohexane-tert-amyl methyl ether systems were measured by a vibrating-tube densimeter at 298.15 K and compared with the data for the methanol-tert-amyl methyl ether system determined previously. Besides, the refractive indices in both the systems were measured at the same temperature.

Crystal Structures of Two New Cyclosporin Clathrates

2000 ◽  
Vol 65 (12) ◽  
pp. 1950-1958 ◽  
Author(s):  
Michal Hušák ◽  
Bohumil Kratochvíl ◽  
Ivana Císařová ◽  
Alexandr Jegorov
Keyword(s):  
Crystal Structures ◽  
Methyl Ether ◽  
Van Der Waals ◽  
Van Der Waals Interactions ◽  
Solvent Molecules ◽  
Butyl Methyl Ether

Two isomorphous clathrates formed by dihydrocyclosporin A or cyclosporin V with tert-butyl methyl ether are reported and compared with the structures of related P21-symmetry cyclosporin clathrates. The cyclosporin molecules in both structures are associated via van der Waals interactions forming cavities occupied by solvent molecules (cyclosporin : tert-butyl methyl ether is 1 : 2).

Excess volumes of binary mixtures of an alcohol + diethylketone

1976 ◽  
Vol 54 (16) ◽  
pp. 2676-2677 ◽  
Author(s):  
Kalluru S. Reddy ◽  
Murari Venkata P. Rao ◽  
Puligundla R. Naidu
Keyword(s):  
Binary Mixtures ◽  
Excess Volumes

Excess volumes of mixtures of 1-propanol +, 1-butanol +, 1-pentanol +, and 1-hexanol + diethylketone have been measured at 303.15 and 313.15 K. Of the four mixtures included here 1-propanol + diethylketone shows an inversion in sign in VE at 313.15 K. VE becomes more positive with increase in temperature.

Excess volumes of the binary mixtures of cyclohexane with isomers of hexanol at 25�C

1986 ◽  
Vol 15 (5) ◽  
pp. 433-438 ◽  
Author(s):  
J. Ortega ◽  
M. I. Paz-Andrade ◽  
E. Rodriguez-N��ez ◽  
F. Sarmiento
Keyword(s):  
Binary Mixtures ◽  
Excess Volumes

Storage Stability of Solvent-Free Condensates of Functionalized Trialkoxysilanes

1999 ◽  
Vol 576 ◽  
Author(s):  
S. Stein ◽  
St. Cramer V. Clausbruch ◽  
N. Moszner ◽  
V. Rheinberger Ivoclar Ag
Keyword(s):  
Methyl Ether ◽  
Storage Stability ◽  
Solvent Free ◽  
Residual Silanol Groups ◽  
Acid Catalyzed ◽  
Chemical Conditions ◽  
Degree Of Condensation ◽  
Hydrolysis Of ◽  
Initial Viscosity ◽  
Butyl Methyl Ether

ABSTRACTThe lack of storage stability of organic-inorganic solvent-free sols is a well-known problem. We investigated the influence of different solvents in the acid catalyzed hydrolysis of various sols on their storage stability. Our experiments were based on two different silanes, 3-methacryloxypropyltrimethoxysilane (MPTS) and 1,1,1-tris(allyloxymethyl)-l-[[[3-(triethoxysilyl)propyl]aminocarbonyl]oxymethyl]methane (silane 31), synthesized by reaction of pentaerythritol triallyl ether and 3-isocyanatopropyltriethoxysilane. The employed solvents were alcohol, tetrahydofuran and tert-butyl methyl ether in a range of 95 wt% to 30 wt% in solution. In order to get comparable chemical conditions the degree of condensation of the various sols were adjusted between 75% and 85%. Furthermore, the sols were modified by silylation with trimethylchlorosilane. A comparison of silylated and not silylated silane 31 clearly showed that a decrease in residual silanol groups increase the storage stability. The results of the investigations demonstrated that both the kind and the amount of solvent used in hydrolysis affects the initial viscosity of solvent-free condensates of silane 31 and MPTS.

Excess volumes of binary mixtures of methylcyclohexane with substituted benzenes and cyclohexanone

1991 ◽  
Vol 36 (4) ◽  
pp. 473-474 ◽  
Author(s):  
D. Venkatesulu ◽  
B. Busa Goud ◽  
M. V. Prabhakara Rao
Keyword(s):  
Binary Mixtures ◽  
Excess Volumes ◽  
Substituted Benzenes
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