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| 001 | 862433 | ||
| 005 | 20220930130210.0 | ||
| 024 | 7 | _ | |a 10.3390/polym11040737 |2 doi |
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| 100 | 1 | _ | |a Lamura, Antonio |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a Tethered Semiflexible Polymer under Large Amplitude Oscillatory Shear |
| 260 | _ | _ | |a Basel |c 2019 |b MDPI |
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| 520 | _ | _ | |a The properties of a semiflexible polymer with fixed ends exposed to oscillatory shear flow are investigated by simulations. The two-dimensionally confined polymer is modeled as a linear bead-spring chain, and the interaction with the fluid is described by the Brownian multiparticle collision dynamics approach. For small shear rates, the tethering of the ends leads to a more-or-less linear oscillatory response. However, at high shear rates, we found a strongly nonlinear reaction, with a polymer (partially) wrapped around the fixation points. This leads to an overall shrinkage of the polymer. Dynamically, the location probability of the polymer center-of-mass position is largest on a spatial curve resembling a limaçon, although with an inhomogeneous distribution. We found shear-induced modifications of the normal-mode correlation functions, with a frequency doubling at high shear rates. Interestingly, an even-odd asymmetry for the Cartesian components of the correlation functions appears, with rather similar spectra for odd x- and even y-modes and vice versa. Overall, our simulations yielded an intriguing nonlinear behavior of tethered semiflexible polymers under oscillatory shear flow |
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| 700 | 1 | _ | |a Winkler, Roland G. |0 P:(DE-Juel1)131039 |b 1 |e Corresponding author |
| 773 | _ | _ | |a 10.3390/polym11040737 |g Vol. 11, no. 4, p. 737 - |0 PERI:(DE-600)2527146-5 |n 4 |p 737 |t Polymers |v 11 |y 2019 |x 2073-4360 |
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