Conformations of ring polymers with excluded volume interactions

2021 ◽  
Vol 65 (4) ◽  
pp. 595-604
Author(s):  
Manisha Handa ◽  
Parbati Biswas
Keyword(s):  
Excluded Volume ◽  
Ring Polymers

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.

scholarly journals Excluded Volume Effects on Semiflexible Ring Polymers

Nano Letters ◽  
2010 ◽  
Vol 10 (4) ◽  
pp. 1445-1449 ◽  
Author(s):  
Fabian Drube ◽  
Karen Alim ◽  
Guillaume Witz ◽  
Giovanni Dietler ◽  
Erwin Frey
Keyword(s):  
Excluded Volume ◽  
Excluded Volume Effects ◽  
Ring Polymers ◽  
Volume Effects

scholarly journals Intrinsic Viscosity of Flexible Ring Polymers with Small Excluded Volume

1973 ◽  
Vol 4 (4) ◽  
pp. 446-451 ◽  
Author(s):  
Genzo Tanaka ◽  
Hiromi Yamakawa
Keyword(s):  
Intrinsic Viscosity ◽  
Excluded Volume ◽  
Ring Polymers ◽  
Flexible Ring

A Field Theory for Polymeric Networks with Excluded Volume

1995 ◽  
Vol 5 (10) ◽  
pp. 1241-1246 ◽  
Author(s):  
Thomas A. Vilgis ◽  
Michael P. Solf
Keyword(s):  
Field Theory ◽  
Excluded Volume ◽  
Polymeric Networks

scholarly journals An interplay of excluded-volume and polymer–(co)solvent attractive interactions regulates polymer collapse in mixed solvents

2021 ◽  
Vol 154 (13) ◽  
pp. 134903
Author(s):  
Swaminath Bharadwaj ◽  
Divya Nayar ◽  
Cahit Dalgicdir ◽  
Nico F. A. van der Vegt
Keyword(s):  
Mixed Solvents ◽  
Excluded Volume ◽  
Polymer Collapse

scholarly journals Spatial segregation of mixed-sized counterions in dendritic polyelectrolytes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
J. S. Kłos ◽  
J. Paturej
Keyword(s):  
Electrostatic Interactions ◽  
Spatial Separation ◽  
Excluded Volume ◽  
The Core ◽  
Bjerrum Length ◽  
Two Component ◽  
Conformational Properties ◽  
Dynamics Simulations ◽  
Two Parameters ◽  
Swelling Factor

AbstractLangevin dynamics simulations are utilized to study the structure of a dendritic polyelectrolyte embedded in two component mixtures comprised of conventional (small) and bulky counterions. We vary two parameters that trigger conformational properties of the dendrimer: the reduced Bjerrum length, $$\lambda _B^*$$ λ B ∗ , which controls the strength of electrostatic interactions and the number fraction of the bulky counterions, $$f_b$$ f b , which impacts on their steric repulsion. We find that the interplay between the electrostatic and the counterion excluded volume interactions affects the swelling behavior of the molecule. As compared to its neutral counterpart, for weak electrostatic couplings the charged dendrimer exists in swollen conformations whose size remains unaffected by $$f_b$$ f b . For intermediate couplings, the absorption of counterions into the pervaded volume of the dendrimer starts to influence its conformation. Here, the swelling factor exhibits a maximum which can be shifted by increasing $$f_b$$ f b . For strong electrostatic couplings the dendrimer deswells correspondingly to $$f_b$$ f b . In this regime a spatial separation of the counterions into core–shell microstructures is observed. The core of the dendrimer cage is preferentially occupied by the conventional ions, whereas its periphery contains the bulky counterions.

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