2-Ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid → Trimethylolpropane

Participants

Reaction Conditions

Reaction Steps

The alkylenediamine (ADA for abbreviation) is added into a round-bottom flask equipped with a stirring, a reflux condenser and a thermometer, and cooled to 10° C. below under nitrogen. The methanol solution of trimethylolpropane triacrylate (TMPTA for abbreviation) is then added to the flask, and the mixture is allowed to react at 25˜35° C. for 20˜48 hours, The result solution is subjected to vacuum distillation to remove excess alkylidenediamine (ADA) and methanol at 60˜110° C. for 5˜10 hours to obtain a light-amber viscous material, i.e., intermediate trimethylolpropane core, amino terminated dendrimer (TMPTA-ADA-9NH for abbreviation), wherein a general reaction equation thereof is as follows:

Provenance & Evidence