Results 41 to 50 of about 89 (80)

Macrolactones and Polyesters from Ricinoleic Acid

Biomacromolecules, 2005
A systematic study on the synthesis, characterization, and polymerization of ricinoleic acid (RA) lactone is reported. Ricinoleic acid lactones were synthesized by refluxing pure ricinoleic acid in chloroform (10 mg/mL) with dicyclohexylcarbodimide and (dimethylamino)pyridine as catalyst.
Raia, Slivniak, Abraham J, Domb
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Ricinoleic Acid Catabolism in Peroxisomes

Botanica Acta, 1991
AbstractPeroxisomes from castor bean endosperm and mung bean hypocotyl completely degrade ricinoleic acid (12‐D‐hydroxy‐9‐cis‐octadecenoic acid) to acetyl‐CoA. Concomitant NADH formation occurred with a stoichiometry of 9 nmol NADH formed per 1 nmol ricinoleate degraded.
Heidrun Gerbling, B. Gerhardt
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Phosphorus-containing esters of ricinoleic acid

AIP Conference Proceedings, 2021
The interaction of thiotrichlorophosphate with the sodium salt of ricinoleic acid in alcohol-benzene mixtures has been studied. Tris(ricinoleate) thiophosphate has been isolated with high yield (80%). Its composition has been determined. The structure of the product was characterized by the following methods: 1H, 13C, 31P NMR, IR spectroscopy, gel ...
N. P. Shapkin, I. G. Khal’chenko, N. V. Maslova, V. G. Savchenko, E. M. Zayats   +4 more
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Lactic Acid and Ricinoleic Acid Based Copolyesters

Macromolecules, 2005
Copolyesters based on purified ricinoleic (RA) and lactic (LA) acids with different RA:LA ratios were synthesized by thermal polycondensation and by transesterification of high molecular weight poly(lactic acid) (PLA) with ricinoleic acid and repolyesterification.
Raia Slivniak, Abraham J. Domb
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Stable polyanhydride synthesized from sebacic acid and ricinoleic acid

Journal of Controlled Release, 2017
Poly(anhydride) are unstable and prone to hydrolytic degradation and depolymerisation via anhydride interchange. They are stored at -20°C, packed under inert atmosphere until use. We synthesized a new poly(anhydride) from ricinoleic (RA) and sebacic (SA) acid with alternating ester-anhydride structure that is stable at 25°C for over 18months.
Moran, Haim-Zada, Arijit, Basu, Tal, Hagigit, Ron, Schlinger, Michael, Grishko, Alexander, Kraminsky, Ezra, Hanuka, Abraham J, Domb   +7 more
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Final Report on the Safety Assessment of Ricinus Communis (Castor) Seed Oil, Hydrogenated Castor Oil, Glyceryl Ricinoleate, Glyceryl Ricinoleate SE, Ricinoleic Acid, Potassium Ricinoleate, Sodium Ricinoleate, Zinc Ricinoleate, Cetyl Ricinoleate, Ethyl Ricinoleate, Glycol Ricinoleate, Isopropyl Ricinoleate, Methyl Ricinoleate, and Octyldodecyl Ricinoleate1

International Journal of Toxicology, 2007
The oil derived from the seed of the Ricinus communis plant and its primary constituent, Ricinoleic Acid, along with certain of its salts and esters function primarily as skin-conditioning agents, emulsion stabilizers, and surfactants in cosmetics, although other functions are described.
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Synthesis of phosphatidylcholines containing ricinoleic acid

Tetrahedron, 2001
Abstract 1,2-Diricinoleoyl- and 1-ricinoleoyl-2-oleoyl-sn-glycero-3-phosphocholine were synthesised with good yields. The synthesis started with the preparation of ricinoleic acid from castor oil. The choice of a suitable agent to protect the –OH group of ricinoleic acid was a key factor to afford the final products.
Gianpietro Borsotti, Gianfranco Guglielmetti, Silvia Spera, Ezio Battistel   +3 more
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Polyesters of Ricinoleic Acid and Lactic Acid

2009
Abstract Properties of Special Interest Polyester copolymers of ricinoleic acid (RA) with lactic acid (LA) degrade in physiological medium giving an almost zero-order weight loss, with a 20–40% loss after 60 days of incubation. Lactic acid release to the degradation solution is proportional to weight loss of the polymer samples. The main
Boris Vaisman, Ariella Shikanov, Abraham J Domb, R Langer   +3 more
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Determination of ricinoleic acid by differentiating titrations

Journal of the American Oil Chemists' Society, 1965
AbstractA technique based on a method of differentiating titrations was developed for the resolution of mixtures of ricinoleic, sulfuric and ethylsulfuric acids. The total and partial acid values were determined by potentiometric titration with a glass‐calomel electrode using aqueous sodium hydroxide as titrant.
Narses Barona, H. W. Prengle
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Energies of combustion and standard molar enthalpies of formation of ricinoleic acid and methyl ricinoleate

The Journal of Chemical Thermodynamics, 2012
Abstract Standard energies of combustion of ricinoleic acid and methyl ricinoleate were measured experimentally by using a semi-micro bomb calorimeter. The energies of combustion of ricinoleic acid and methyl ricinoleate were used to derive the corresponding standard molar enthalpies of formation ( - Δ f H m ∘ ) in liquid
Patricia Amador, Eduardo Martínez, Oscar Sánchez-Daza, Henoc Flores   +3 more
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