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Freely jointed chain models with extensible links

Journal Article · · Physical Review. E

We report analytical relations for the mechanical response of single polymer chains are valuable for modeling purposes, on both the molecular and the continuum scale. These relations can be obtained using statistical thermodynamics and an idealized single-chain model, such as the freely jointed chain model. To include bond stretching, the rigid links in the freely jointed chain model can be made extensible, but this almost always renders the model analytically intractable. Here, an asymptotically correct statistical thermodynamic theory is used to develop analytic approximations for the single-chain mechanical response of this model. The accuracy of these approximations is demonstrated using several link potential energy functions. This approach can be applied to other single-chain models, and to molecular stretching in general.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program; National Science Foundation
Grant/Contract Number:
NA0003525
OSTI ID:
1887403
Report Number(s):
SAND2022-11294J; 709363
Journal Information:
Physical Review. E, Journal Name: Physical Review. E Journal Issue: 2 Vol. 106; ISSN 2470-0045
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (50)

Force Spectroscopy of Molecular Systems—Single Molecule Spectroscopy of Polymers and Biomolecules journal September 2000
Mechanisms of DNA binding determined in optical tweezers experiments journal January 2007
Helmholtz and Gibbs ensembles, thermodynamic limit and bistability in polymer lattice models journal December 2017
Understanding the physics of DNA using nanoscale single-molecule manipulation journal August 2012
On the Precise Meaning of Extension in the Interpretation of Polymer-Chain Stretching Experiments journal November 2003
Stretching DNA with optical tweezers journal March 1997
Single molecule measurements of titin elasticity journal January 2001
Rupture of polymers by chain scission journal May 2017
A micromechanics-based model for deformation-induced damage and failure in elastomeric media journal May 2021
A variational phase-field model for brittle fracture in polydisperse elastomer networks journal January 2020
Progressive damage and rupture in polymers journal February 2018
A theory for fracture of polymeric gels journal June 2018
A multiscale cohesive zone model for rate-dependent fracture of interfaces journal December 2020
Chain breaking in the statistical mechanical constitutive theory of polymer networks journal November 2021
Energy based fracture initiation criterion for strain-crystallizing rubber-like materials with pre-existing cracks journal December 2021
Affine and non-affine microsphere models for chain scission in polydisperse elastomer networks journal September 2021
Modeling the mechanical behaviors of multiple network elastomers journal October 2021
A multiscale tensile failure model for double network elastomer composites journal December 2021
On the equivalence of thermodynamics ensembles for flexible polymer chains journal February 2014
Analytical results of the extensible freely jointed chain model journal October 2019
Recording stretching response of single polymer chains adsorbed on solid substrates journal October 2016
Perturbation Methods book January 2012
Modeling the Mechanics of Polymer Chains with Deformable and Active Bonds journal December 2019
Fracture of Polymer Networks Containing Topological Defects journal August 2020
Coarse-Grained Simulations for Fracture of Polymer Networks: Stress Versus Topological Inhomogeneities journal December 2021
Rate-Dependent Damage Mechanics of Polymer Networks with Reversible Bonds journal December 2021
Single-Molecule Force Measurements by Nano-Handling of Individual Dendronized Polymers journal February 2014
Array programming with NumPy journal September 2020
SciPy 1.0: fundamental algorithms for scientific computing in Python journal February 2020
Spin variable approach for the statistical mechanics of folding and unfolding chains journal January 2017
Force-mediated molecule release from double network hydrogels journal January 2021
Statistical Theory of Networks of Non‐Gaussian Flexible Chains journal July 1952
Elasticity of flexible and semiflexible polymers with extensible bonds in the Gibbs and Helmholtz ensembles journal April 2012
Thermodynamics of small systems with conformational transitions: The case of two-state freely jointed chains with extensible units journal August 2018
Quantifying DNA melting transitions using single-molecule force spectroscopy journal December 2008
Single molecule force spectroscopy by AFM indicates helical structure of poly(ethylene-glycol) in water journal January 1999
Elastic properties and secondary structure formation of single-stranded DNA at monovalent and divalent salt conditions journal November 2013
On the Determination of Molecular Fields. II. From the Equation of State of a Gas journal October 1924
Diatomic Molecules According to the Wave Mechanics. II. Vibrational Levels journal July 1929
Statistical mechanical constitutive theory of polymer networks: The inextricable links between distribution, behavior, and ensemble journal July 2020
Ensemble inequivalence in single-molecule experiments journal May 2009
Two-state theory of single-molecule stretching experiments journal March 2013
Influence of ligand-receptor interactions on force-extension behavior within the freely jointed chain model journal December 2017
Isotensional and isometric force-extension response of chains with bistable units and Ising interactions journal November 2018
Elastically Coupled Two-Level Systems as a Model for Biopolymer Extensibility journal November 1998
Overstretching B-DNA: The Elastic Response of Individual Double-Stranded and Single-Stranded DNA Molecules journal February 1996
Single Molecule Force Spectroscopy on Polysaccharides by Atomic Force Microscopy journal February 1997
Extension of chains composed of freely joined elastic segments journal April 2009
Elastic Properties of Nucleic Acids by Single-Molecule Force Spectroscopy journal July 2016
The Statistical Length of Long-Chain Molecules journal December 1946