Non-affine displacements in flexible polymer networks

Details Non-affine displacements in flexible polymer networks Non-affine displacements in flexible polymer networks

2010-11-28

arxiv.org/abs/1011.6101v1

Macromolecules 44, 1671 (2011)

Physics

Condensed Matter

Soft Condensed Matter

37 pages, 7 figures

Scientific paper

10.1021/ma1026803

The validity of the affine assumption in model flexible polymer networks is explored. To this end, the displacements of fluorescent tracer beads embedded in polyacrylamide gels are quantified by confocal microscopy under shear deformation, and the deviations of these displacements from affine responses are recorded. Non-affinity within the gels is quantified as a function of polymer chain density and cross-link concentration. Observations are in qualitative agreement with current theories of polymer network non-affinity. The measured degree of non-affinity in the polyacrylamide gels suggests the presence of structural inhomogeneities which likely result from heterogeneous reaction kinetics during gel preparation. In addition, the macroscopic elasticity of the polyacrylamide gels is confirmed to behave in accordance with standard models of flexible polymer network elasticity.

Affiliated with

Also associated with

No associations

Rating

Non-affine displacements in flexible polymer networks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Non-affine displacements in flexible polymer networks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-affine displacements in flexible polymer networks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-220098