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Title: Nanoparticle Motion in Entangled Melts of Linear and Nonconcatenated Ring Polymers [Nanoparticle Motion in Entangled Melts of Non-Concatenated Ring Polymers].

Journal Article · · Macromolecules
ORCiD logo [1];  [2];  [3];  [4];  [1]
  1. Univ. of North Carolina, Chapel Hill, NC (United States)
  2. National Inst. of Technology Karnataka (India)
  3. Max Planck Inst. for Polymer Research, Ackermannweg (Germany)
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

The motion of nanoparticles (NPs) in entangled melts of linear polymers and non-concatenated ring polymers are compared by large-scale molecular dynamics simulations. The comparison provides a paradigm for the effects of polymer architecture on the dynamical coupling between NPs and polymers in nanocomposites. Strongly suppressed motion of NPs with diameter d larger than the entanglement spacing a is observed in a melt of linear polymers before the onset of Fickian NP diffusion. This strong suppression of NP motion occurs progressively as d exceeds a, and is related to the hopping diffusion of NPs in the entanglement network. In contrast to the NP motion in linear polymers, the motion of NPs with d > a in ring polymers is not as strongly suppressed prior to Fickian diffusion. The diffusion coefficient D decreases with increasing d much slower in entangled rings than in entangled linear chains. NP motion in entangled non-concatenated ring polymers is understood through a scaling analysis of the coupling between NP motion and the self-similar entangled dynamics of ring polymers.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1356222
Report Number(s):
SAND-2016-9157J; 647441
Journal Information:
Macromolecules, Vol. 50, Issue 4; ISSN 0024-9297
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 46 works
Citation information provided by
Web of Science

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Cited By (16)

Chemical heterogeneity in interfacial layers of polymer nanocomposites journal January 2018
Adsorption Behavior of Polymer Chain with Different Topology Structure at the Polymer-Nanoparticle Interface journal May 2018
Driven spheres, ellipsoids and rods in explicitly modeled polymer solutions journal March 2019
A Review of the Synthesis and Applications of Polymer–Nanoclay Composites journal September 2018
Unexpected entanglement dynamics in semidilute blends of supercoiled and ring DNA journal January 2020
Exploration of bulk and interface behavior of gas molecules and 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid using equilibrium and nonequilibrium molecular dynamics simulation and quantum chemical calculation journal January 2018
Probing the organization and dynamics of two DNA chains trapped in a nanofluidic cavity journal January 2018
Comparing gas transport in three polymers via molecular dynamics simulation journal January 2018
Interfacial Properties and Hopping Diffusion of Small Nanoparticle in Polymer/Nanoparticle Composite with Attractive Interaction on Side Group journal May 2018
Translational and rotational dynamics of an ultra-thin nanorod probe particle in linear polymer melts journal January 2018
Molecular insight into the Mullins effect: irreversible disentanglement of polymer chains revealed by molecular dynamics simulations journal January 2017
Diffusion Mode Transition between Gaussian and Non-Gaussian of Nanoparticles in Polymer Solutions journal March 2019
Determine Mesh Size through Monomer Mean-Square Displacement journal August 2019
Driven spheres, ellipsoids and rods in explicitly modeled polymer solutions text January 2019
Unexpected entanglement dynamics in semidilute blends of supercoiled and ring DNA text January 2019
From continuous-time random walks to controlled-diffusion reaction journal March 2019

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