Adipic Acid → Hexanedioic acid, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol, octadecanoate

Participants

Reaction Steps

As in Example A, 71.4 g (0.525 mole) pentaerythritol and 283.5 g (1.05 mole) stearic acid were reacted for 3 hours at 200°-210° C. in the presence of 0.2 g tin powder. 65.7 g (0.45 mole) adipic acid and 0.2 g tin powder were then added to the reaction mixture before it was heated for 5.5 hours to 200°-210° C. The pressure was slowly reduced to 24 mbar during the first 90 minutes and thereafter was kept at that value. After filtration under pressure and cooling, the pentaerythritol adipate stearate (7:6:14) (material B; 372 g) was present as a yellowish, brittle, wax-like mass (dropping point 53.2° C.; acid number 2.1; saponification number 286.4; hydroxyl number 22).

Provenance & Evidence