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. 2021 Jan 29;13(3):431. doi: 10.3390/polym13030431

Table 2.

Zeta potential of native, VAC-, and SHMP-modified WPS.

Sample Z-Average (nm) Zeta Potential (mV)
WPS 272.0 ± 9.5 a −11.1 ± 0.2 e
SHMP(4%)-WPS 276.8 ± 11.2 a −15.7 ± 0.3 d
SHMP(6%)-WPS 580.6 ± 40.1 c −17.4 ± 0.4 c
SHMP(8%)-WPS 392.1 ± 17.1 b −18.4 ± 0.3 b
VAC(4%)-WPS 385.4 ± 15.6 b −18.1 ± 0.1 b
VAC(6%)-WPS 548.1 ± 35.3 c −17.3 ± 1.0 c
VAC(8%)-WPS 383.8 ± 20.1 b −20.1 ± 0.2 a

a–e Mean values with different lowercase letters in the same row are significantly different (p < 0.05).