The conformational states of macromolecules adsorbed at solid-liquid interfaces

摘要: Abstract The adsorption isotherms and adsorbate layer thicknesses of about 20 different, dilute, polymeric systems were determined. With very few exceptions, all found to form monolayers, which in the majority, consisted individual macromolecules. This conclusion stems from observation that vary with square root molecular weight and, if supernatant changes, change same way as intrinsic viscosity. It follows further macromolecules are held, by relatively attachments, solvent pervaded coils dimensions similar those free solution. is true for organic aqueous solutions, polar nonpolar adsorbants adsorbates. Polyelectrolytes high group density may be pulled entirely onto surface salt formations; stiff or oligomeric molecules reactive end groups become anchored at one only, lie flat on surfaces. Peptides proteins exhibit pattern behavior.