Results 251 to 260 of about 92,642 (284)

Hydrolytic stability of synthetic oils

Chemistry and Technology of Fuels and Oils, 1983
This article investigates the hydrolytic stability for diisooctyl sebacate (DOS), the pentaerythritol and diethylene glycol esters of a C/sub 5/-C/sub 9/ synthetic fatty acid cut (PEE and DEGE), and synthetic oils based on these esters: VNII NP 50-1-4f, B-3V, and 36/1 KU-A.
A. I. Echin, G. T. Novosartov, T. B. Kondrat'eva   +2 more
openaire   +1 more source

Monomeric emulsifiers, 2. Hydrolytic stability

Die Makromolekulare Chemie, Rapid Communications, 1984
Etude du (methacryloylamino)-11 undecanoylamino-4 benzenesulfonate de sodium et du (methacryloylamino)-11 undecanoylamino-2 ethanesulfonate de ...
Hydrolytic Stability, Walter De Winter, August Mariën   +2 more
openaire   +1 more source

Hydrolytic stability of polyurethane medical adhesive dressings

Biomaterials, 1994
The present study deals with the effect of the type and chemical character of incorporated polyester (polyether blocks) on the hydrolytic stability of different types of polyurethane medical adhesive dressings. Diffusion parameters of the investigated polyurethane adhesives, giving information concerning the chemical changes taking place in water or ...
M, Pavlova, M, Draganova
openaire   +2 more sources

Hydrolytic Stability of Urethan Elastomers

Rubber Chemistry and Technology, 1966
Abstract Data have been presented bearing on the hydrolytic stability of a wide variety of urethan elastomers (Table III). It has boon shown that polyester based elastomers are considerably more susceptible to hydrolytic attack than polyether elastomers up to 158° F. The nature of the attack and results obtained are profoundly influenced by the
Z. T. Ossefort, P. B. Testroet
openaire   +1 more source

The hydrolytic stability of some polyimides

Polymer Science U.S.S.R., 1972
In most papers dealing with the heat resistance of polymers the study of thermal stability generally reduces to thermogravimetric analysis in an inert atmosphere (thermal degradation) or in air (thermal-oxidative degradation). In these circumtances it is often not possible to follow certain degradative processes that do not involve substantial change ...
V.V. Korshak, S.V. Vinogradova, Ya.S. Vygodskii, Z.V. Gerashchenko, N.I. Lushkina   +4 more
openaire   +1 more source

Hydrolytic Stability of Ethoxylated Sulfonates

SPE International Symposium on Oilfield Chemistry, 1989
ABSTRACT This paper discusses the reactions that are responsible for the decomposition of alkyl ethoxylated sulfonates under reservoir conditions. Experimental results are presented to substantiate the derivation of several kinetics equations.
openaire   +1 more source

Hydrolytic Stability of Aqueous Solutions of Salicin

Pharmaceutical Chemistry Journal, 2020
The kinetics of salicin acid hydrolysis in aqueous solutions were studied. The salicin content in the reaction mixtures was determined by HPLC with UV detection. The salicin hydrolysis rate depended more on the solution acidity than on the temperature.
S. V. Nekhoroshev, A. V. Nekhorosheva, A. B. Sabutova, E. Kh. Botirov, A. A. Drenin, G. B. Slepchenko, N. V. Gornikov   +6 more
openaire   +1 more source

Hydrolytic stability of methacrylamide in acidic aqueous solution

Biomaterials, 2004
In order to develop a more effective self-etching primer, with a longer lasting shelf life, we designed a self-etching primer comprised of methacrylamide, N-methacryloyl glycine, NMGly. In this study, the hydrolytic stability of the amide portion in the NMGly was examined.
Norihiro, Nishiyama, Kazuomi, Suzuki, Hiroki, Yoshida, Hideki, Teshima, Kimiya, Nemoto   +4 more
openaire   +2 more sources

Hydrolytic Stability of Alkylethoxy Sulfates

SPE Reservoir Engineering, 1988
Summary Sulfate surfactants are being proposed by industry for use in moderate-temperature surfactant floods. Sulfates are also being considered by some groups for use in CO2 mobility control and surfactant/alkaline floods. Data from this study show that the maximum applicable temperatures for sulfates under these pH conditions are much ...
openaire   +1 more source

Hydrolytic Stability of Terephthaloyl Chloride and Isophthaloyl Chloride

Environmental Science & Technology, 2006
The phthaloyl chloride isomers, terephthaloyl chloride (TCl) and isophthaloyl chloride (ICl), are high production volume chemicals used in polymers to impartflame resistance, chemical resistance, and temperature stability and as water scavengers. In these studies, we determined the hydrolytic stability of TCl and ICl and their hydrolysis products in ...
William R, Berti, Barry W, Wolstenholme, John J, Kozlowski, Raymond L, Sobocinski, Robert W, Freerksen   +4 more
openaire   +2 more sources