Dispersion force

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Materials have different cohesive energies, defined as the energy associated with the intermolecular attractive interactions within a unit volume of material. Generally speaking, materials with similar cohesive energies are more likely to dissolve each other. PDMS devices can swell when meet with such solvents, resulting in application problems. Ref. [1] discussed this effect in different solvents in detail and also demonstrated the approach to eliminate this effect.

References

[1] Solvent Compatibility of Poly(dimethylsiloxane)-Based Microfluidic Devices

Keyword in references:

Electrostatic Charging Due to Separation of Ions at Interfaces: Contact Electrification of Ionic Electrets

Solvent Compatibility of Poly(dimethylsiloxane)-Based Microfluidic Devices

Why Are Proteins Charged? Networks of Charge– Charge Interactions in Proteins Measured by Charge Ladders and Capillary Electrophoresis