Chinese Journal of Polymer Science

, Volume 37, Issue 12, pp 1290–1297 | Cite as

Simulation Study on the Extension of Semi-flexible Polymer Chains in Cylindrical Channel

  • Yu Fu
  • Fan Wu
  • Jian-Hua Huang
  • Ying-Cai Chen
  • Meng-Bo LuoEmail author


The scaling relations among the mean end-to-end distance of polymer along the channel < R >, the polymer length N, and the effective diameter of channel De were investigated for flexible and semi-flexible polymer chains confined in long cylindrical channels. For the flexible polymer chain, scaling relation < R > ∼ NDe-0.7 was found in the classic de Gennes regime at lp2/b < De < Rg with lp the persistence length, b the bond length, and Rg the radius of gyration of polymer. For the semi-flexible polymer, <R > ∼ NDe-1 in the transition regime lp < De < xlp (x > 1) and <R > ∼ De-0.7 in the classic de Gennes regime at larger De > xlp were observed. The simulation results revealed that the scaling relation in the transition regime was due to the rod-like behavior of the semi-flexible polymer in the small regime lp < De < xlp.


Semi-flexible polymer Cylindrical channel Conformation Scaling relation Monte Carlo simulation 


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This work was financially supported by the National Natural Science Foundation of China (Nos. 21574117 and 11674277), and Zhejiang Provincial Natural Science Foundation of China (No. LY16A040004).


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Copyright information

© Chinese Chemical Society Institute of Chemistry, Chinese Academy of Sciences Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Yu Fu
    • 1
  • Fan Wu
    • 1
  • Jian-Hua Huang
    • 2
  • Ying-Cai Chen
    • 3
  • Meng-Bo Luo
    • 1
    Email author
  1. 1.Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of PhysicsZhejiang UniversityHangzhouChina
  2. 2.Department of ChemistryZhejiang Sci-Tech UniversityHangzhouChina
  3. 3.Department of PhysicsTaizhou UniversityTaizhouChina

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