1,3-Propanediamine → Trimethylolpropane

Participants

Reaction Conditions

Reaction Steps

44.40 g of 1,3-Propanediamine (PDA) (0.60 mol) was added into a round-bottom flask with a stirring, a reflux condenser and a thermometer, and cooled to 10° C. below under nitrogen. 74.00 g methanol solution of trimethylolpropane triacrylate (TMPTA) (40%, 0.1 mol) was added to the round-bottom flask, and the mixture is allowed to react at 25° C. for 24 hours. The result solution is subjected to vacuum distillation to remove excess 1,3-Propanediamine (PDA) and methanol at 90° C. for 5 hours, to yield 51.83 g of light-amber viscous material, i.e., intermediate trimethylolpropane core, amino terminated dendrimer (TMPTA-PDA-9NH).

Provenance & Evidence