Characterization of minor constituents in commercial oleic acid

1982 ◽  
Vol 59 (1) ◽  
pp. 42-46 ◽  
Author(s):  
Sherman S. Lin ◽  
Yukinobu Murase ◽  
David B. S. Min ◽  
Oliver A. L. Hsieh ◽  
Stephen S. Chang
Keyword(s):  
Oleic Acid ◽  
Minor Constituents ◽  
Commercial Oleic Acid

Origin of minor constituents of commercial oleic acid

1982 ◽  
Vol 59 (1) ◽  
pp. 47-50
Author(s):  
Y. Murase ◽  
S. S. Lin ◽  
D. B. S. Min ◽  
O. A. L. Hsieh ◽  
S. S. Chang
Keyword(s):  
Oleic Acid ◽  
Minor Constituents ◽  
Commercial Oleic Acid

Formulation and Characterization of Oleic Acid Magnetic PEG PLGA Nanoparticles for Targeting Glioblastoma Multiforme

2021 ◽  
pp. 167970
Author(s):  
Khushboo Jani ◽  
Neeraj Kaushal ◽  
Mostafa Sadoqi ◽  
Gen Long ◽  
Zhe-Sheng Chen ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Glioblastoma Multiforme ◽  
Plga Nanoparticles

scholarly journals Synthesis and Characterization of a Bioconjugate Based on Oleic Acid and L-Cysteine

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1791
Author(s):  
Marco Vizcarra-Pacheco ◽  
María Ley-Flores ◽  
Ana Mizrahim Matrecitos-Burruel ◽  
Ricardo López-Esparza ◽  
Daniel Fernández-Quiroz ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Materials Science ◽  
Critical Micellar Concentration ◽  
Synthesis And Characterization ◽  
New Materials ◽  
Visible Spectroscopy ◽  
Amide Bonds ◽  
Transmission Electron ◽  
Self Assembled

One of the main challenges facing materials science today is the synthesis of new biodegradable and biocompatible materials capable of improving existing ones. This work focused on the synthesis of new biomaterials from the bioconjugation of oleic acid with L-cysteine using carbodiimide. The resulting reaction leads to amide bonds between the carboxylic acid of oleic acid and the primary amine of L-cysteine. The formation of the bioconjugate was corroborated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and nuclear magnetic resonance (NMR). In these techniques, the development of new materials with marked differences with the precursors was confirmed. Furthermore, NMR has elucidated a surfactant structure, with a hydrophilic part and a hydrophobic section. Ultraviolet-visible spectroscopy (UV-Vis) was used to determine the critical micellar concentration (CMC) of the bioconjugate. Subsequently, light diffraction (DLS) was used to analyze the size of the resulting self-assembled structures. Finally, transmission electron microscopy (TEM) was obtained, where the shape and size of the self-assembled structures were appreciated.

scholarly journals Synthesis and Characterization of Partially Renewable Oleic Acid-Based Ionomers for Proton Exchange Membranes

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 130
Author(s):  
Carlos Corona-García ◽  
Alejandro Onchi ◽  
Arlette A. Santiago ◽  
Araceli Martínez ◽  
Daniella Esperanza Pacheco-Catalán ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Proton Conductivity ◽  
Electrochemical Impedance ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Molar Ratio ◽  
Aromatic Diamines ◽  
Chemical Structures ◽  
Long Chain

The future availability of synthetic polymers is compromised due to the continuous depletion of fossil reserves; thus, the quest for sustainable and eco-friendly specialty polymers is of the utmost importance to ensure our lifestyle. In this regard, this study reports on the use of oleic acid as a renewable source to develop new ionomers intended for proton exchange membranes. Firstly, the cross-metathesis of oleic acid was conducted to yield a renewable and unsaturated long-chain aliphatic dicarboxylic acid, which was further subjected to polycondensation reactions with two aromatic diamines, 4,4′-(hexafluoroisopropylidene)bis(p-phenyleneoxy)dianiline and 4,4′-diamino-2,2′-stilbenedisulfonic acid, as comonomers for the synthesis of a series of partially renewable aromatic-aliphatic polyamides with an increasing degree of sulfonation (DS). The polymer chemical structures were confirmed by Fourier transform infrared (FTIR) and nuclear magnetic resonance (1H, 13C, and 19F NMR) spectroscopy, which revealed that the DS was effectively tailored by adjusting the feed molar ratio of the diamines. Next, we performed a study involving the ion exchange capacity, the water uptake, and the proton conductivity in membranes prepared from these partially renewable long-chain polyamides, along with a thorough characterization of the thermomechanical and physical properties. The highest value of the proton conductivity determined by electrochemical impedance spectroscopy (EIS) was found to be 1.55 mS cm−1 at 30 °C after activation of the polymer membrane.

scholarly journals AN UNSATURATED FATTY ACID FRACTION OF PIG PANCREAS WHICH INHIBITS THE GROWTH OF CHICKEN SARCOMA

1936 ◽  
Vol 64 (3) ◽  
pp. 333-338 ◽  
Author(s):  
O. M. Helmer
Keyword(s):  
Oleic Acid ◽  
Fatty Acid ◽  
Iodine Number ◽  
Aqueous Extract ◽  
Unsaturated Fatty Acid ◽  
Fatty Acid Fraction ◽  
Pancreatic Tissue ◽  
Acid Number ◽  
Acid Fraction ◽  
Commercial Oleic Acid

The inhibiting action of pancreatic tissue was found to be associated with the unsaturated fatty acid fraction. As small an amount of fatty acid as 0.1 mg. inhibited the chicken sarcoma agent contained in 0.2 cc. of a 1:60 aqueous extract of Chicken Tumor I. The unsaturated fatty acid had an acid number and an iodine number similar to those for oleic acid. Commercial oleic acid also was found to inhibit the growth of the chicken sarcoma in comparable quantities.

Characterization of new acrylic bone cements prepared with oleic acid derivatives

2002 ◽  
Vol 63 (2) ◽  
pp. 88-97 ◽  
Author(s):  
Blanca Vázquez ◽  
Sanjukta Deb ◽  
William Bonfield ◽  
Julio San Román
Keyword(s):  
Oleic Acid ◽  
Bone Cements
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