

FOLLOWUS
a.Department of Information, Wenzhou Polytechnic, Wenzhou 325035, China
b.College of Computer Science and Artificial Intelligence, Wenzhou University, Wenzhou 325035, China
c.Department of Physics, Hangzhou Normal University, Hangzhou 310036, China
d.Department of Physics, Zhejiang University, Hangzhou 310027, China
lihong@wzu.edu.cn (H.L.)
xqzhang@wzu.edu.cn (X.Q.Z.)
luomengbo@zju.edu.cn (M.B.L)
Received:18 May 2020,
Revised:2020-7-23,
Accepted:03 August 2020,
Online First:07 October 2020,
Published:02 January 2021
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Gao, H. B.; Li, H.; Zhang, X. Q.; Wang, X. H.; Li, C. Y.; Luo, M. B. Computer simulation study on adsorption and conformation of polymer chains driven by external force. Chinese J. Polym. Sci. 2021, 39, 258–266
He-Bei Gao, Hong Li, Xiao-Qin Zhang, et al. Computer Simulation Study on Adsorption and Conformation of Polymer Chains Driven by External Force[J]. Chinese Journal of Polymer Science, 2021, 39(2): 258-266.
Gao, H. B.; Li, H.; Zhang, X. Q.; Wang, X. H.; Li, C. Y.; Luo, M. B. Computer simulation study on adsorption and conformation of polymer chains driven by external force. Chinese J. Polym. Sci. 2021, 39, 258–266 DOI: 10.1007/s10118-020-2491-x.
He-Bei Gao, Hong Li, Xiao-Qin Zhang, et al. Computer Simulation Study on Adsorption and Conformation of Polymer Chains Driven by External Force[J]. Chinese Journal of Polymer Science, 2021, 39(2): 258-266. DOI: 10.1007/s10118-020-2491-x.
In this work
Monte Carlo simulations are used to study the critical adsorption behaviors of flexible polymer chains under the action of an external driving force
F
parallel to an attractive flat surface. The critical adsorption temperature
T
c
decreases linearly with increasing
F
indicating that the driving force suppresses the adsorption of polymer. The conformation of polymer is also affected by the driving force. However
the effect of
F
is dependent on the competition between the driving force and temperature. Under strong force or at low temperature
the polymer is stretched along the direction of the force
while under weak force or at high temperature
the polymer is not stretched. When the force is comparable to the temperature
the polymer may be stretched perpendicular to the driving force
and below
T
c
we observe conformational transitions from parallel to perpendicular and again to parallel by decreasing the temperature. We found that the perpendicular stretched conformation leads the polymer chain to synchronously move along the direction of the driving force. Moreover
the conformational transitions are attributed to the competition and cooperation between the driving force and the temperature.
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