Table 3 Surface active and thermodynamic properties of the prepared nonionic and hybrid surfactants at 25 °C.

From: Synthesis a new family hybrid anionic/nonionic surfactant and investigation their physical properties in relation to chemical enhanced oil recovery

Surfactant

γ

(mN m− 1)

CMC x 103

(mol dm− 3)

π cmc

(mN m− 1)

Γmax x 1010

(mol cm− 2)

Amin

(Ao2 molecule− 1)

∆ G mic

(kJ mol− 1)

∆Gads

(kJ mol− 1)

pC20

(mol dm− 3)

C20 × 105

(mol dm− 3)

Value

Sd

Non-Ionic

NMAE-10

32

0.7023

2.48

36

2.25

73.82

−14.86

−20.38

4.34

4.54

NMAE-12

27

0.5507

1.84

41

1.79

92.81

−15.60

−23.37

4.86

1.37

NMAE-14

30

0.9014

2.24

38

1.89

87.67

−15.11

−22.45

4.69

2.04

Hybrid

AMAES-10

25

0.9643

2.03

43

1.68

98.60

−15.35

−21.81

5.47

0.34

AMAES-12

20

0.8002

1.66

48

1.48

112.34

−15.85

−24.63

6.43

0.04

AMAES-14

23

0.3055

1.84

45

1.58

104.89

−15.60

−23.33

6.08

0.08

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