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Your search keyword '"Oleic acid -- Research"' showing total 7 results
Start Over Descriptor "Oleic acid -- Research" Topic chemicals, plastics and rubber industries
7 results on '"Oleic acid -- Research"'

1. Matrix effect in the size distribution of fatty acid vesicles

Author

Blochliger, Evelin, Blocher, Markus, Walde, Peter, and Luisi, Pier Luigi

Subjects
Oleic acid -- Research, Fatty acids -- Research, Micelles -- Research, Chemicals, plastics and rubber industries
Abstract

A study was conducted to analyze the cooperative mechanism of oleic acid/oleate vesicle formation. The Cary 1E UV/vis spectrophotometer was utilized to perform turbidity measurements while oleic acid/oleate veiscle samples were evaluated by electron microscopy. The vesicle samples were also analyzed by a fiber-optics-based spectrometer supporting an argon laser and a digital autocorrelator. Results suggested that the lag phase in autocatalytic processes correlated with the transition from micelles to vesicles.

Published
1998

3. Products of mechanism of ozone reactions with oleic acid for aerosol particles having core-shell morphologies

Author

Katrib, Yasmine, Martin, Scot T., Hung, Hui-Ming, Rudich, Yinon, Zhang, Haizheng, Slowik, Jay G., Davidovits, Paul, Jayne, John T., and Worsnop, Douglas R.

Subjects
Oleic acid -- Chemical properties, Oleic acid -- Research, Chemical reactions -- Analysis, Humidity -- Usage, Chemicals, plastics and rubber industries
Abstract

The study of heterogenous reactions of oleic acid aerosol particles with ozone is presented. A relative humidity of less than 1% is used for this purpose.

Published
2004

4. Solid-state(super 13)C NMR study on order --> disorder phase transition in oleic acid

Author

Akita, Chikayo, Kawaguchi, Tatsuya, Kaneko, Fumitoshi, and Yamamoto, Hitoshi

Subjects
Oleic acid -- Research, Nuclear magnetic resonance spectroscopy -- Research, Chemicals, plastics and rubber industries
Abstract

The reversible solid-state phase transition between the gamma and alpha phases of oleic acid was followed by 13C solid-state NMR spectroscopy. The factors that have a significant influence on the spectra of cis-monosaturated acyl chains are discussed.

Published
2004

5. Coexistence and mutual competition of vesicles with different size distributions

Author

Cheng, Zhiliang and Pier Luigi Luisi

Subjects
Oleic acid -- Research, Chemicals, plastics and rubber industries
Abstract

The mutual interaction of vesicles in three different systems is investigated, that is, POPC vesicles with POPC vesicles, oleic acid vesicles with oleic acid vesicles and POPC vesicles with oleic acid vesicles. The different size populations of vesicles can coexist in the same solution without tendency to fuse with each to search for an energy minimum.

Published
2003

6. Reactive uptake of ozone by oleic acid aerosol particles: application of single-particle mass spectrometry to heterogeneous reaction kinetics

Author

Smith, Geoffrey D., Woods, Ephraim III, DeForest, Cindy L., Baer, Tomas, and Miller, Roger E.

Subjects
Mass spectrometry -- Usage, Oleic acid -- Research, Oleic acid -- Chemical properties, Chemical reactions -- Analysis, Chemicals, plastics and rubber industries
Abstract

The technique of single-particle mass spectrometry is coupled to a reaction flow tube to measure the uptake coefficient, gamma, of ozone (O3) by oleic acid aerosol particles. A reaction model that includes simultaneous diffusion and reaction of both O3 and oleic acid is developed and used ton fit the observed rates of reaction.

Published
2002

7. Chemical kinetic modeling of copolyesterification between o-phthalic anhydride, oleic acid, and neopentyl glycol in bulk at 205 degrees C

Author

Lopez-Gonzalez, M.M.C., Cudero, M.J. Callejo, and Barrales-Rienda, J.M.

Subjects
Oleic acid -- Research, Phthalic anhydride -- Research, Polyesters -- Research, Chemicals, plastics and rubber industries
Abstract

Research was conducted to examine the kinetics of the bulk copolyesterification at 205 degrees C between o-phthalic anhydride, oleic acid and neopentyl glycol in a nonequimolecular ratio and in the absence of an external catalyst. Results indicate that the overall kinetic order of the copolyesterification is third order. The copolyesterification is three-halves order in carboxylic and three-halves in hydroxyl group concentrations.

Published
1998

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