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Esterification of trimethylolpropane with fatty acids
Chemistry and Technology of Fuels and Oils, 19671. It has been shown that sodium bisulfate in an amount of 3–5% significantly shortens the reaction time compared with the most widely used catalysts in esterification of trimethylolpropane with fatty acids; it simplifies subsequent treatment of the reaction mixture, and increases the yield of ester.
T. M. Itsikson +2 more
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Porous copolymers of trimethylolpropane triacrylate and acrylonitrile
Die Makromolekulare Chemie, 1993AbstractThe homopolymer of trimethylolpropane triacrylate (TMPA) was synthesized by suspension polymerization using a thermodynamically good solvent (toluene) as a porogen (vol. ratio 1:1). This polymer possesses a high specific surface area (437 m2 · g−1) and porosity (50%).
Bozena N. Kolarz +2 more
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Kinetic investigations of trimethylolpropane–diisocyanate reactions
Journal of Applied Polymer Science, 2006AbstractTrimethylolpropane (TMP) is frequently used as a trifunctional branching and chain‐extending agent in polyurethane production. This article deals with the analysis of the reactivities of the three primary hydroxyl groups of TMP during reactions with two exemplary diisocyanates: aromatic diphenylmethane‐4,4′‐diisocyanate and aliphatic m ...
Maike Möller, Hans‐Ulrich Moritz
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Esters of oxypropylated trimethylolpropanes as synthetic lubricants
Industrial Lubrication and Tribology, 2007PurposeThe paper aims to study the effects of introducing oxypropyl segments into the trimethylolpropane (TMP) esters along with lowering the linear chain length from C5‐C9 to C5‐C6 on the properties of base lubricants.Design/methodology/approachVarious amounts of oxypropylene segments were introduced into the TMP skeleton and obtained polyols ...
Firdovsi Tataroglu Sejidov +1 more
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Porosity determination of poly(trimethylolpropane trimethacrylate) gels
Die Makromolekulare Chemie, 1991AbstractTrimethylolpropane trimethacrylate (TRIM) was suspension‐polymerized with toluene as poreforming agent. The concentration of the monomer (TRIM) in the porogen was varied between 20 and 50 vol.‐% of the organic phase. The poly(TRIM) particles had narrow particle‐size distributions.
Andrea Schmid +2 more
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