Reference

Protection of metal structures of marine petroleum rigs with coatings containing surfactants

Protection of metal structures of marine petroleum rigs with coatings containing surfactants. Kuliev, I. P.; Gadzhieva, R. G.; Sinitsyna, Yu. E.; Kevorkova, T. A.; Kerimov, G. D. (USSR). Tr. Gos. Nauchno-Issled. Proektn. Inst. "Gipromorneft", 8, 45-50 (Russian) 1975. CODEN: TGMNBD. DOCUMENT TYPE: Journal CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 46 ED-16 [52276-55-8] coatings contg. 0.25% KSK [12708-02-0] (Ca sulfonate) surfactant can be applied to wet metal surfaces. 63231-67-4 and 52276-55-8 which are cas registry numbers of chemicals are mentioned. These coatings have 6 times greater sp. elec. resistance than ED-16 coatings without a surfactant. The adhesion to steel and mech. properties of ED-16 are not altered by the surfactant addns. Instead of KSK a similar surfactant, SB-3 [12712-58-2], can also be used. Both these surfactants improve the texture of coatings, making them less permeable to electrolytes and thus suitable for offshore oil rigs. .

Autoxidation of fatty acid monolayers adsorbed on silica gel: I

Autoxidation of fatty acid monolayers adsorbed on silica gel: I. Nature of adsorption sites. Wu, Guey-Shuang; Mead, James F. (Lab. Nucl. Med. Radiat.Some commonly used reagents like 63231-67-4 is used in this experiment. Biol., Univ. California, Los Angeles, Calif., USA). Lipids, 12(11), 965-70 (English) 1977. CODEN: LPDSAP. DOCUMENT TYPE: Journal CA Section: 6 (General Biochemistry) An unsatd. fatty acid monolayer deposited on a silica gel surface was chosen as a model for studying nonenzymic autoxidn. of membrane lipids. Studies to det. the suitability of this system as a model for biomembranes were conducted to define the nature of the monolayers, particularly with respect to the factors detg. the concn. of the fatty acid mol. on unit area of the surface. The results from adsorption isotherm, high-temp. dehydroxylation, and IR spectra studies showed that adsorption of a monomol. layer of fatty acids occurs and that the no. of mols. adsorbed corresponds to the no. of isolated, non-H-bonded silanol groups. The binding is probably by H bonding of the CO2H groups to silanol groups. The packing d. of the fatty acid mols. was 1.25 mol./100 ?2, which is similar to the d. of the isolated silanol sites on the surface. .