Table 1 Interfacial tension (IFT) values of cationic PAMAM dendrimer G2-C12 at different concentrations, including standard deviation (± SD).

From: Enhanced oil recovery from sandstone reservoir using cationic hyperbranched polyamidoamine dendrimer surfactant flooding under real reservoir conditions

Surfactant concentrations, ppm

IFT, mN/m

±SD (mN/m)

0 ppm (oil and DW)

30

± 0.00

0 ppm(oil and FW)

27

± 0.00

1 х 103 ppm

10

± 0.32

1.5 х 103 ppm

7

± 0.28

2 х 103 ppm

5

± 0.24

2.5 х 103 ppm

3

± 0.00

3 х 103 ppm

2

± 0.37

3.5 х 103 ppm

2

± 0.33

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