BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.
S22:Staub nicht einatmen. S24/25:Berührung mit den Augen und der Haut vermeiden.
Beschreibung
Di(trimethylol propane), Di-TMP, 2,2-[oxybis(methylene)]-bis(2-ethyl)-1,3-propanediol is a colorless and crystalline substance (mp 112 – 114 ℃), only slightly soluble in water at ambient temperature (2.6 g/100 g at 25 ℃).It is a byproduct of 2-ethyl-2-hydroxymethyl-1,3-propanediol (TMP) production and can be isolated from the residue of the TMP distillation step. Newer investigations show that ditrimethylolpropane can be prepared in high yield and selectivity by the reaction of TMP, formaldehyde, and 2-ethylacrolein.
Verwenden
Di(trimethylolpropane) can be used for the synthesis of lipase catalyzed hyperbranched polymers. It can also be used in the formation of biodegradable polymers for drug delivery applications.
Synthesis Reference(s)
Canadian Journal of Chemistry, 53, p. 1103, 1975 DOI:10.1139/v75-154
Allgemeine Beschreibung
Di(trimethylolpropane) is a monomeric unit with primary hydroxyl groups, that can be used as a tetrafunctional core molecule.
2,2'-[Oxybis(methylen)]bis[2-ethylpropan-1,3-diol] Upstream-Materialien And Downstream Produkte