Effects of Chain Stiffness on Conformational and Dynamical Properties of Individual Ring Polymers in Shear Flow

2013 ◽  
Vol 46 (18) ◽  
pp. 7542-7549 ◽  
Author(s):  
Wenduo Chen ◽  
Jizhong Chen ◽  
Lijun Liu ◽  
Xiaolei Xu ◽  
Lijia An
Keyword(s):  
Shear Flow ◽  
Chain Stiffness ◽  
Ring Polymers ◽  
Dynamical Properties

scholarly journals Effects of Topological Constraints on Penetration Structures of Semi-Flexible Ring Polymers

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2659
Author(s):  
Fuchen Guo ◽  
Ke Li ◽  
Jiaxin Wu ◽  
Linli He ◽  
Linxi Zhang
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Effective Potential ◽  
Topological Constraints ◽  
Chain Stiffness ◽  
Ring Polymers ◽  
Dynamics Simulations ◽  
Flexible Ring ◽  
Peak Value ◽  
Improved Algorithm

The effects of topological constraints on penetration structures of semi-flexible ring polymers in a melt are investigated using molecular dynamics simulations, considering simultaneously the effects of the chain stiffness. Three topology types of rings are considered: 01-knot (the unknotted), 31-knot and 61-knot ring polymers, respectively. With the improved algorithm to detect and quantify the inter-ring penetration (or inter-ring threading), the degree of ring threading does not increase monotonously with the chain stiffness, existing a peak value at the intermediate stiffness. It indicates that rings interpenetrate most at intermediate stiffness where there is a balance between coil expansion (favoring penetrations) and stiffness (inhibiting penetrations). Meanwhile, the inter-ring penetration would be suppressed with the knot complexity of the rings. The analysis of effective potential between the rings provides a better understanding for this non-monotonous behavior in inter-ring penetration.

Effects of chain stiffness and shear flow on nanoparticle dispersion and distribution in ring polymer melts

2020 ◽  
Vol 21 (3) ◽  
pp. 229-239
Author(s):  
Dan Wang ◽  
Feng-qing Li ◽  
Xiang-hong Wang ◽  
Shi-ben Li ◽  
Lin-li He
Keyword(s):  
Shear Flow ◽  
Polymer Melts ◽  
Nanoparticle Dispersion ◽  
Chain Stiffness ◽  
Ring Polymer

Effects of excluded volume and hydrodynamic interaction on the deformation, orientation and motion of ring polymers in shear flow

Soft Matter ◽  
2015 ◽  
Vol 11 (26) ◽  
pp. 5265-5273 ◽  
Author(s):  
Wenduo Chen ◽  
Hongchao Zhao ◽  
Lijun Liu ◽  
Jizhong Chen ◽  
Yunqi Li ◽  
...  
Keyword(s):  
Shear Flow ◽  
Hydrodynamic Interaction ◽  
Excluded Volume ◽  
Linear Polymers ◽  
Significant Difference ◽  
Ring Polymers

In the absence of excluded volume interaction, ring polymers show no significant difference from linear polymers, and tank-treading motion is nearly negligible.

Conformational and dynamical properties of ultra-soft colloids in semi-dilute solutions under shear flow

2012 ◽  
Vol 24 (46) ◽  
pp. 464103 ◽  
Author(s):  
Sunil P Singh ◽  
Dmitry A Fedosov ◽  
Apratim Chatterji ◽  
Roland G Winkler ◽  
Gerhard Gompper
Keyword(s):  
Shear Flow ◽  
Dilute Solutions ◽  
Dynamical Properties ◽  
Soft Colloids

Conformation and Dynamics of Individual Star in Shear Flow and Comparison with Linear and Ring Polymers

2017 ◽  
Vol 50 (3) ◽  
pp. 1236-1244 ◽  
Author(s):  
Wenduo Chen ◽  
Kexin Zhang ◽  
Lijun Liu ◽  
Jizhong Chen ◽  
Yunqi Li ◽  
...  
Keyword(s):  
Shear Flow ◽  
Individual Star ◽  
Ring Polymers

scholarly journals Dynamical Properties of Concentrated Suspensions of Block Copolymer Stars in Shear Flow

2020 ◽  
Vol 53 (22) ◽  
pp. 10015-10027
Author(s):  
Diego Jaramillo-Cano ◽  
Manuel Camargo ◽  
Christos N. Likos ◽  
Ioana C. Gârlea
Keyword(s):  
Block Copolymer ◽  
Shear Flow ◽  
Concentrated Suspensions ◽  
Dynamical Properties
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