Frequency‐dependent viscosity of linear polymer chains. Influence of non‐Gaussian effects

Antonio Rey; Juan J. Freire

doi:10.1063/1.469127

Frequency‐dependent viscosity of linear polymer chains. Influence of non‐Gaussian effects

The Journal of Chemical Physics ◽

10.1063/1.469127 ◽

1995 ◽

Vol 102 (17) ◽

pp. 6900-6907 ◽

Cited By ~ 4

Author(s):

Antonio Rey ◽

Juan J. Freire

Keyword(s):

Polymer Chains ◽

Linear Polymer ◽

Frequency Dependent ◽

Non Gaussian ◽

Dependent Viscosity

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Chemiluminescent self-reported unfolding of single-chain nanoparticles

Chemical Communications ◽

10.1039/d1cc00068c ◽

2021 ◽

Author(s):

Fabian R. Bloesser ◽

Sarah L. Walden ◽

Ishrath M. Irshadeen ◽

Lewis C. Chambers ◽

Christopher Barner-Kowollik

Keyword(s):

Polymer Chains ◽

Linear Polymer ◽

Single Chain

We demonstrate the light-induced, crosslinker mediated collapse of linear polymer chains into single-chain nanoparticles (SCNPs) capable of self-reporting their unfolding.

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Frequency dependent mobility of charge carriers along polymer chains with finite length

physica status solidi (b) ◽

10.1002/pssb.200562719 ◽

2005 ◽

Vol 243 (2) ◽

pp. 382-386 ◽

Cited By ~ 36

Author(s):

P. Prins ◽

F. C. Grozema ◽

J. M. Schins ◽

L. D. A. Siebbeles

Keyword(s):

Finite Length ◽

Charge Carriers ◽

Polymer Chains ◽

Frequency Dependent ◽

Mobility Of Charge Carriers

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Study on the temperature-dependent coupling among viscosity, conductivity and structural relaxation of ionic liquids

Physical Chemistry Chemical Physics ◽

10.1039/c5cp02335a ◽

2015 ◽

Vol 17 (29) ◽

pp. 19126-19133 ◽

Cited By ~ 13

Author(s):

Tsuyoshi Yamaguchi ◽

Takuya Yonezawa ◽

Shinobu Koda

Keyword(s):

Ionic Liquids ◽

Structural Relaxation ◽

Spin Echo ◽

Neutron Spin ◽

Temperature Dependent ◽

Frequency Dependent ◽

Neutron Spin Echo ◽

Dependent Viscosity

The frequency-dependent viscosity and conductivity of three imidazolium-based ionic liquids were measured at several temperatures in the MHz region, and the results are compared with the intermediate scattering functions determined by neutron spin echo spectroscopy.

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Pulses of Fast Electrons as a Tool To Synthesize Poly(acrylic acid) Nanogels. Intramolecular Cross-Linking of Linear Polymer Chains in Additive-Free Aqueous Solution

Macromolecules ◽

10.1021/ma021628s ◽

2003 ◽

Vol 36 (7) ◽

pp. 2484-2492 ◽

Cited By ~ 48

Author(s):

Slawomir Kadlubowski ◽

Jaroslaw Grobelny ◽

Wielislaw Olejniczak ◽

Michal Cichomski ◽

Piotr Ulanski

Keyword(s):

Aqueous Solution ◽

Acrylic Acid ◽

Polymer Chains ◽

Linear Polymer ◽

Cross Linking ◽

Fast Electrons ◽

Poly Acrylic Acid

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Electroelasticity of dielectric elastomers based on molecular chain statistics

Mathematics and Mechanics of Solids ◽

10.1177/1081286518755846 ◽

2018 ◽

Vol 24 (3) ◽

pp. 862-873 ◽

Cited By ~ 4

Author(s):

Mikhail Itskov ◽

Vu Ngoc Khiêm ◽

Sugeng Waluyo

Keyword(s):

Constitutive Model ◽

Polymer Chain ◽

Mechanical Response ◽

Three Dimensional ◽

Polymer Chains ◽

Molecular Chain ◽

Dielectric Elastomers ◽

Finite Extensibility ◽

Single Polymer Chain ◽

Non Gaussian

The mechanical response of dielectric elastomers can be influenced or even controlled by an imposed electric field. It can, for example, cause mechanical stress or strain without any applied load; this phenomenon is referred to as electrostriction. There are many purely phenomenological hyperelastic models describing this electroactive response of dielectric elastomers. In this contribution, we propose an electromechanical constitutive model based on molecular chain statistics. The model considers polarization of single polymer chain segments and takes into account their directional distribution. The latter results from non-Gaussian chain statistics, taking finite extensibility of polymer chains into account. The resulting (one-dimensional) electric potential of a single polymer chain is further generalized to the (three-dimensional) network potential. To this end, we apply directional averaging on the basis of numerical integration over a unit sphere. In a special case of the eight-direction (Arruda–Boyce) model, directional averaging is obtained analytically. This results in an invariant-based electroelastic constitutive model of dielectric elastomers. The model includes a small number of physically interpretable material constants and demonstrates good agreement with experimental data, with respect to the electroactive response and electrostriction of dielectric elastomers.

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