Are Entangled Polymeric Solutions Different from Melts?

Acharya, Manoranjan; Bhattacharjee, Pradipto K.; Nguyễn, Duy Anh; Sridhar, T.

doi:10.1063/1.2964702

Cited by 14 publications

(30 citation statements)

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“…However, the shift factors can be inferred from the zero-shear viscosities reported by Acharya et al (2008) in the following way.…”

Section: Scaling Relations Of Ps Melts and Solutionsmentioning

confidence: 99%

“…The experimental data discussed correspond to those presented by Bhattacharjee et al (2002) and Acharya et al (2008), and are taken from Desai and Larson (2014). The polymers used were nearly monodisperse PSs with molar masses of 1950 kg=mol and 3900 kg=mol, denoted as PS-1950 andPS-3900, respectively.…”

Section: Experimental Datamentioning

confidence: 99%

“…DEP can be considered as a good solvent for PS at room temperature [Savin et al (2004)]. All experiments were conducted at constant strain rate using a filament stretching rheometer at ambient condition, i.e., 21.5 C [Acharya et al (2008)]. The reference sample used in the analysis presented here is a nearly monodisperse PS melt of molar mass 545kg=mol, which was characterized at 130 C by Huang et al (2013b).…”

Section: Experimental Datamentioning

confidence: 99%

“…The objective of the present study is to extend the approach proposed by Wagner (2014) and Wagner (2015) to the set of elongational viscosity data reported by Bhattacharjee et al (2002) and Acharya et al (2008) on two high molar mass PSs dissolved in DEP.…”

Section: Introductionmentioning

confidence: 97%

“…Moreover, DEP was also utilized in polymer solutions with polymer concentrations ranging from marginally entangled to highly entangled in order to quantify the effect of entanglement density on the dynamics in nonlinear step shear relaxation measurements [Archer (1999); Islam et al (2001); Archer and Sanchez-Reyes (2002); Sanchez-Reyes and ]. The steady-state uniaxial extensional viscosities of highly entangled polymer solutions were reported by Bhattacharjee et al (2002), Acharya et al (2008), and Sridhar et al (2014), and the data were modeled in the framework of the Mead, Larson, and Doi model and its modifications [Bhattacharjee et al (2002); Desai and Larson (2014)], or by use of a double constraint release model including chain stretch [Bhattacharjee et al (2003)]. …”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

From melt to solution: Scaling relations for concentrated polystyrene solutions

Wagner¹,

Narimissa²,

Rolón-Garrido³

2015

Journal of Rheology

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“…However, the shift factors can be inferred from the zero-shear viscosities reported by Acharya et al (2008) in the following way.…”

Section: Scaling Relations Of Ps Melts and Solutionsmentioning

confidence: 99%

Section: Experimental Datamentioning

confidence: 99%

Section: Experimental Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

From melt to solution: Scaling relations for concentrated polystyrene solutions

Wagner¹,

Narimissa²,

Rolón-Garrido³

2015

Journal of Rheology

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A constitutive analysis of nonlinear shear flow

2020

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We analyse shear stress and normal stress data obtained by cone-partitioned-plate (CPP) shear rheometry in recent years. The data sets of Schweizer et al. (Rheol. Acta 47, 943–957, 2008) and Costanzo et al. (Macromolecules 49, 3925–3935, 2016; & Fluids 4, 28, 2019) on nearly monodisperse polystyrene melts and solutions are considered to be among the most reliable shear data available. The Doi-Edwards independent alignment (DEIA) model (J. Chem. Soc., Faraday Transactions 2: Molecular and Chemical Physics 74, 1802–1832, 1978a,b) allows for quantitative description of the steady-state values of shear viscosity $$ \eta \left(\dot{\gamma}\right) $$ η ( γ ̇ ) and first normal stress coefficient $$ {\psi}_1\left(\dot{\gamma}\right) $$ ψ 1 ( γ ̇ ) , while it underpredicts the stress overshoot of the stress growth coefficient of the shear stress, η+(t), and fails in predicting a stress overshoot of the stress growth coefficient of first normal stress difference, $$ {\psi}_1^{+}(t) $$ ψ 1 + t . On the other hand, the extended interchain pressure (EIP) model (J. Rheol. 64, 95–110, 2020) provides an excellent prediction of the stress overshoots of both shear stress and first normal stress difference, while overpredicting the steady-state shear viscosity and the first normal stress coefficient. We demonstrate that the shear stress overshoot is the result of a combination of orientational stress overshoot and stretch overshoot, while the normal stress overshoot depends solely on the overshoot of the stretch. Based on these considerations, we propose a novel constitutive approach consisting of a combination of the DEIA and the EIP model, and predictions of this approach are found to be in quantitative agreement with the data sets of Schweizer et al. and Costanzo et al. within experimental accuracy.

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Rheological Characteristics of Polymers: Theoretical Modeling Perspective

Sarkar

Ganguly

2022

Encyclopedia of Materials: Plastics and Polymers

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Are Entangled Polymeric Solutions Different from Melts?

Cited by 14 publications

References 0 publications

From melt to solution: Scaling relations for concentrated polystyrene solutions

From melt to solution: Scaling relations for concentrated polystyrene solutions

A constitutive analysis of nonlinear shear flow

Rheological Characteristics of Polymers: Theoretical Modeling Perspective

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