Various thermodynamic parameters of the binary mixtures of [diisopropylainine (DIIPA) + 2-methyl-1-propanol, + 2-propanol, and + 1-butanol] have been measured over the entire composition range and at a temperature range of (293.15 to 313.15) K. Here, the Redlich-L Kister type polynomial equation is used to derive the coefficients, and standard deviations. The negative value obtained for excess molar volume (V-m(E)) and excess molar isentropic compressibility (K-S,m(E)) shows the presence of strong molecular interactions. The calculated apparent molar volume, V-phi,V-1, and apparent molar compressibility, K-phi,K-1, predicts volume contraction of the solution with the addition of alcohol in DIIPA. The obtained excess molar volume (V-m(E)) has then been correlated by using the Prigogine-Flory-Patterson (PFP) theory.