TY  - JOUR
AU  - Lämmel, Marc
AU  - Jaschinski, Evelin
AU  - Merkel, Rudolf
AU  - Kroy, Klaus
TI  - Microstructure of Sheared Entangled Solutions of Semiflexible Polymers
JO  - Polymers
VL  - 8
IS  - 10
SN  - 2073-4360
CY  - Basel
PB  - MDPI
M1  - FZJ-2016-05315
SP  - 353 -
PY  - 2016
AB  - We study the influence of finite shear deformations on the microstructure and rheology of solutions of entangled semiflexible polymers theoretically and by numerical simulations and experiments with filamentous actin. Based on the tube model of semiflexible polymers, we predict that large finite shear deformations strongly affect the average tube width and curvature, thereby exciting considerable restoring stresses. In contrast, the associated shear alignment is moderate, with little impact on the average tube parameters, and thus expected to be long-lived and detectable after cessation of shear. Similarly, topologically preserved hairpin configurations are predicted to leave a long-lived fingerprint in the shape of the distributions of tube widths and curvatures. Our numerical and experimental data support the theory. 
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000387989400009
DO  - DOI:10.3390/polym8100353
UR  - https://juser.fz-juelich.de/record/819714
ER  -