rheological studies of semidilute polyacrylamide/carbon in netherlands

rheological studies of semidilute polyacrylamide/carbon in netherlands
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  • How does a semi-dilute solution affect a polymer melt?
  • along with molecular forces which can lead to complex relation- ships between the shear rate and a depletion layer at the wall.26 In between the extremes of dilute polymer solutions and polymer melts, the semi-dilute solution regime is encountered in which polymer chains overlap, but where the solvent still plays an important role.
  • What is a semi-dilute solution regime?
  • In between the extremes of dilute polymer solutions and polymer melts, the semi-dilute solution regime is encountered in which polymer chains overlap, but where the solvent still plays an important role. For these cases, relatively little is known about the boundary conditi ons and near-wall transport.24
  • Are TIRFM- derived rheology based on a neutral-chain solution?
  • As with the neutral-chain solutions, we note a good agreement between the TIRFM- derived results (larger circles, eqn (3) and (4)) and the bulk rheology (smaller points).
  • Why is dynamic rheology important for hydrogel characterization?
  • Among these techniques, dynamic rheology has emerged as an effective and powerful approach for gel characterization because in situ experiments are relatively facile to perform during the polymerization process, and viscoelastic properties could directly reflect the structure and morphology of hydrogels [ 12, 13 ].