Table 4.
Physicochemical properties (molecular descriptors) of selected cosurfactants (diols).
| Cosurfactants (Diols) |
Chemical Formula | C No 1 | log P 1 | DEC 1 | Mwt 1 (g/mol) |
C% 1 |
|---|---|---|---|---|---|---|
| Ethylene glycol (1,2-ethanediol) |
C2H6O2 | 2 | −1.69 | 41.4 | 62.07 | 38.70 |
| Propylene glycol (1,2-propanediol) |
C3H8O2 | 3 | −1.34 | 32.0 | 76.10 | 47.35 |
| Butylene glycol (1,2-butanediol) |
C4H10O2 | 4 | −0.74 | 28.8 | 90.12 | 53.30 |
| Pentylene glycol (1,2-pentanediol) |
C5H12O2 | 5 | −0.27 | 18.2 | 104.15 | 57.66 |
| Hexylene glycol (1,2-hexanediol) |
C6H14O2 | 6 | 0.58 | 7.70 | 118.17 | 60.98 |
1 C No; carbon atom number, log P; logarithm of partition coefficient in octanol/water, DEC; dielectric constant, Mwt; molecular weight, C%; carbon content weight percent.