Non-DLVO, steric and fluctuation forces
Non-DLVO, steric and fluctuation forces
Non-DLVO, steric and fluctuation forces
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Steric <strong>forces</strong> between surfaces withphysisorbed layers I▶ No anchoring group that chemisorb to the surface▶ Binding to the surface via much weaker physical <strong>forces</strong>▶ Highly dynamic layers: Individual segments continually attaching <strong>and</strong> detaching from the surface: whole molecules slowly exchange with those in bulk solutionWhen two surface approach each other▶ Amount of adsorbed polymer changing▶ Number of binding sites per molecule changing▶ Different segments from the same coil bound to both surfaces Bridging▶ Long time to reach equilibrium▶ Hysteretic force profile
Change language