Results 181 to 190 of about 2,759 (198)
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Thermal degradation of carboxy-terminal trimethylolpropane/adipic acid hyperbranched poly(ester)s
Journal of Thermal Analysis and Calorimetry, 2015Carboxy-terminal hyperbranched poly(ester)s offer great potential as platforms for the support of controlled release of actives in the pharmaceutical, cosmetic, agricultural and biomedical fields. Such materials have been prepared from trimethylolpropane and adipic acid and have been fully characterized using chromatographic, spectroscopic and thermal ...
Tracy Zhang +2 more
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Journal of Synthetic Lubrication, 2006
Large amounts of lubricants having strong environmental effects are released into the environment. This has led to the development of so-called ‘environmentally acceptable’ lubricants based on synthetic and/or native esters. The aquatic toxicity of these lubricants is low and they are readily biodegradable.
Stefan Hahn +2 more
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Large amounts of lubricants having strong environmental effects are released into the environment. This has led to the development of so-called ‘environmentally acceptable’ lubricants based on synthetic and/or native esters. The aquatic toxicity of these lubricants is low and they are readily biodegradable.
Stefan Hahn +2 more
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Vapor pressure and enthalpy of vaporization of trimethylolpropane and carboxylic acids esters
Fluid Phase Equilibria, 2018Abstract Vapor pressure and molar standard enthalpies of vaporization of esters of 2-ethyl-2-(hydroxymethyl)-1,3-propandiol (trimethylolpropane, TMP) and straight and branched carboxylic acids with chain length C1, C3-C6, were determinated by the transpiration method.
Eugen L. Krasnykh +3 more
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Lubrication properties of trimethylolpropane esters based on palm oil and palm kernel oils
European Journal of Lipid Science and Technology, 2004AbstractDue to the global drive towards biodegradable products, trimethylolpropane [2‐ethyl‐2‐(hydroxymethyl)‐1, 3‐propanediol] (TMP) esters based on palm and palm kernel oils were synthesized, their lubrication properties evaluated, and their potential as base stock for biodegradable lubricants assessed.
Robiah Yunus +4 more
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International Journal of Chemical Reactor Engineering, 2011
To improve the oxidative stability of the palm oil-based biolubricant, the fatty acid double bonds in palm oil-based trimethylolpropane ester (TMP ester) was converted into an oxirane ring via an in-situ epoxidation method. The epoxidized TMP ester was produced from a reaction between TMP ester and peracetic acid which was prepared in-situ by reacting ...
Ferra Naidir +3 more
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To improve the oxidative stability of the palm oil-based biolubricant, the fatty acid double bonds in palm oil-based trimethylolpropane ester (TMP ester) was converted into an oxirane ring via an in-situ epoxidation method. The epoxidized TMP ester was produced from a reaction between TMP ester and peracetic acid which was prepared in-situ by reacting ...
Ferra Naidir +3 more
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NeuroToxicology, 2002
The effect of a single subconvulsive dose of the GABAergic convulsant trimethylolpropane phosphate (TMPP) on gene expression in total rat brain was examined using cDNA array analysis. Using threshold criteria that reduce the number of false positives to
A C, Russell +7 more
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The effect of a single subconvulsive dose of the GABAergic convulsant trimethylolpropane phosphate (TMPP) on gene expression in total rat brain was examined using cDNA array analysis. Using threshold criteria that reduce the number of false positives to
A C, Russell +7 more
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Esters of 1,1,1-trimethylolpropane as a base and component of lubricating oils
Azerbaijan Oil IndustrySymmetrical, unsymmetrical esters of 1,1,1-trimetilolpropan (TMP) with C6-C8 aliphatic monocarboxylic acids have been synthesized. Their physicochemical, viscosity-temperature, thermal-oxidative (TOS) properties have been studied. It was found that esters have relatively low viscosities at 100 oC (3.55–4.39 mm2/s), high flash points (198–220 oC) and ...
G.N. Gurbanov +3 more
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Synthesis of palm oil fatty acid and trimethylolpropane based ester for biolubricant base stocks
AIP Conference Proceedings, 2018RBD palm oil become one of the interesting renewable resources in biolubricant application. However, palm oil cannot be used directly as lubricant due to some performance limitations such as thermal and oxidative stability. This drawback can be overcome by chemical modification through esterification with polyhydric alcohol such as trimethylolpropane ...
Nurazira Mohd Nor +2 more
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