Table 3: Effect of the degree of ionization α on the percentage of P4VPS introduces into bentonite on the interlamellar space.

SampleαPolymeric salt content (%)d (nm)2θ (°)

Bentonite01.386.39
P4VP/MMT [37]07.2
P4VPS1/MMT0.18.61.475.98
P4VPS2/MMT0.259.51.475.98
P4VPS3/MMT19.61.495.90
P4VPS4/MMT1.57.11.505.88