Rheological Behaviors of Polymers with Nanoparticles Tethered at Each End

Song-Qi Zhang; Wen-Qing Wang; Jia-Ping Lin; Li-Quan Wang

doi:10.1007/s10118-023-3052-x

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Rheological Behaviors of Polymers with Nanoparticles Tethered at Each End

RESEARCH ARTICLE | Updated：2024-02-20

- Rheological Behaviors of Polymers with Nanoparticles Tethered at Each End
- Rheological Behaviors of Polymers with Nanoparticles Tethered at Each End
- 高分子科学（英文版） 2024年42卷第3期页码：400-406
- Affiliations：
  
  Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
- Author bio：
  
  jlin@ecust.edu.cn (J.P.L.)
  lq_wang@ecust.edu.cn (L.Q.W.)
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 21774032 and 51833003) and Shanghai Scientific and Technological Innovation Projects (No. 22ZR1417500).;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-023-3052-x.
- DOI：10.1007/s10118-023-3052-x
  中图分类号：
- 收稿：2023-08-06，
  
  修回：2023-8-30，
  
  录用：2023-9-8，
  
  网络首发：2023-10-09，
  
  纸质出版：2024-03-01
- Accepted：
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Zhang, S. Q.; Wang, W. Q.; Lin, J. P.; Wang, L. Q. Rheological behaviors of polymers with nanoparticles tethered at each end. Chinese J. Polym. Sci. 2024, 42, 400–406

Song-Qi Zhang, Wen-Qing Wang, Jia-Ping Lin, et al. Rheological Behaviors of Polymers with Nanoparticles Tethered at Each End[J]. Chinese Journal of Polymer Science, 2024, 42(3): 400-406.
Zhang, S. Q.; Wang, W. Q.; Lin, J. P.; Wang, L. Q. Rheological behaviors of polymers with nanoparticles tethered at each end. Chinese J. Polym. Sci. 2024, 42, 400–406 DOI： 10.1007/s10118-023-3052-x.

Song-Qi Zhang, Wen-Qing Wang, Jia-Ping Lin, et al. Rheological Behaviors of Polymers with Nanoparticles Tethered at Each End[J]. Chinese Journal of Polymer Science, 2024, 42(3): 400-406. DOI： 10.1007/s10118-023-3052-x.

摘要

The nanoparticles at the ends can retard the polymer motion and influence the rheological behavior

where the moduli are less dependent on the frequency as the polymer chain shortens or the nanoparticle becomes large.

Abstract

The polymer with nanoparticles tethered at each end is a unique model for unraveling the effect of chain ends on the polymer dynamics. We investigated the rheological behavior of this kind of polymer by using nonequilibrium molecular dynamics simulation. The effect of polymer lengths and nanoparticle radii on the complex moduli and viscosity was examined. The dependence of complex moduli on the frequency becomes less pronounced as the polymer is short or the nanoparticle is large. The shear thinning behavior was revealed for these systems

and the scaling exponent of complex viscosity with respect to the frequency was found to change from −1/2 to −3/4 as the polymer shortens or the nanoparticle enlarges. The rheological behavior was further explained by analyzing the mean square distance of nanoparticles. The simulation results were compared with the existing experimental finding

showing an agreement. The work provides information for understanding the chain end effect on polymer rheology.

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references

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