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You searched for: Publication Year 2012 Remove constraint Publication Year: 2012 Source 2012 v.114 no.1 Remove constraint Source: 2012 v.114 no.1 Subject esters Remove constraint Subject: esters
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1. Chemical modifications of Sterculia foetida L. oil to branched ester derivatives

Author:
Manurung, Robert; Daniel, Louis; van de Bovenkamp, Hendrik H.; Buntara, Teddy; Maemunah, Siti; Kraai, Gerard; Makertihartha, I. G. B. N.; Broekhuis, Antonius A.; Heeres, Hero J.
Source:
European journal of lipid science and technology 2012 v.114 no.1 pp. 31-48
ISSN:
1438-7697
Subject:
Sterculia; catalysts; coatings; esters; fatty acids; hydrogen peroxide; ketones; oils; olefin; oxidants; oxidation; palladium; pour point; resins; trees
Abstract:
... An experimental study to modify Sterculia foetida L. oil (STO) or the corresponding methyl esters (STO FAME) to branched ester derivatives is reported. The transformations involve conversion of the cyclopropene rings in the fatty acid chains of STO through various catalytic as well as stoichiometric reactions. Full conversion of the cyclopropene rings was obtained using Diels–Alder chemistry inv ...
DOI:
10.1002/ejlt.201100149

2. Esters of maleinized fatty compounds as plasticizers

Author:
Biermann, Ursula; Jungbauer, Anton; Metzger, Jürgen O.
Source:
European journal of lipid science and technology 2012 v.114 no.1 pp. 49-54
ISSN:
1438-7697
Subject:
absorption; conjugated linoleic acid; esters; methanol; plasticizers; tricarboxylic acids; tung oil; viscosity
Abstract:
... Some plant oil derived cyclohexane tricarboxylic acid triesters were synthesized and suggested as potential plasticizers based mainly on renewable feedstock. Methyl calendulate 1 and α‐eleostearate 2 obtained from calendula oil and tung oil, respectively, as well as methyl oleate 3 were used as starting material. Reactions with maleic anhydride gave the corresponding Diels–Alder adducts 4 and 5 an ...
DOI:
10.1002/ejlt.201100136

3. Synthesis of pseudo‐telechelic diols by transesterification and thiol‐ene coupling

Author:
Desroches, Myriam; Caillol, Sylvain; Auvergne, Rémi; Boutevin, Bernard
Source:
European journal of lipid science and technology 2012 v.114 no.1 pp. 84-91
ISSN:
1438-7697
Subject:
coatings; couplings; esters; ethylene glycol; glass transition temperature; mass spectrometry; nuclear magnetic resonance spectroscopy; polyurethanes; rapeseed oil; transesterification; vegetable oil
Abstract:
... Transesterification of methyl esters of rapeseed oil with ethylene glycol in excess led to a ω‐hydroxy fatty ester with a yield of 90%. 2‐Mercaptoethanol was grafted onto the double bonds of this ω‐hydroxy fatty ester by UV initiated thiol‐ene coupling under mild conditions. Double bond conversion was found to be quantitative and yielded a polyol with average of two primary hydroxyl func ...
DOI:
10.1002/ejlt.201100132

4. Thermal characteristics of oleochemical carbonate binary mixtures for potential latent heat storage

Author:
Kenar, James A.
Source:
European journal of lipid science and technology 2012 v.114 no.1 pp. 63-70
ISSN:
1438-7697
Subject:
alcohols; carbonates; esters; fatty acids; heat; melting; melting point; paraffin wax; solidification; thermal properties
Abstract:
... The thermal properties for binary mixtures at various weight fraction ratios between dodecyl carbonate (1a), tetradecyl carbonate (1b), hexadecyl carbonate (1c), and octadecyl carbonate (1d) were examined by DSC at 0.5, 1.0, and 5.0°C/min. At 5°C/min sharp well defined phase transitions were observed at 80:20, 88:12, and 90:10, for 1a:(1b, 1c, and 1d), respectively, at 74:26 and 80:20 for 1b:(1c, ...
DOI:
10.1002/ejlt.201100043