In general, the Zeta -potential of a polymer depending on the acidity of the media?

Question

In general,  the Zeta   -potential of a polymer depending on the acidity of the media?

Answer

Yes, except for hydrophobic hydrogels.

Answer

No, the surface charge of hydrogels depends of the functional groups on the surface.

Answer

Yes, and usually the more alkaline the media, the more negative the charge.

Answer

Yes, but with the exceptions of the polymers with charge zero at the isoelectric point

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