On the Statistical Thermodynamics of Multicomponent Fluids: Equation of State

Jain, R.K.; Simha, Robert

doi:10.1021/ma60078a027

Cited by 95 publications

(66 citation statements)

References 3 publications

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“…In PEO/PMMA blends the glass transition where C and D are constants. 28,53 From eq. (14a) overlaps partly with the melting transition at inthe temperature-dependent zero-pressure thertermediate blend compositions.…”

Section: Equations Of State and Characteristic Scaling Parametersmentioning

confidence: 99%

Pressure-volume-temperature properties and free volume parameters of PEO/PMMA blends

Schmidt

Maurer

1998

J. Polym. Sci. B Polym. Phys.

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Section: Equations Of State and Characteristic Scaling Parametersmentioning

confidence: 99%

Pressure-volume-temperature properties and free volume parameters of PEO/PMMA blends

Schmidt

Maurer

1998

J. Polym. Sci. B Polym. Phys.

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“…5 This approach has been successful in describing miscible polymer blends, e.g., polystyrene (PS) with poly(phenylene ether) (PPE). 6 However, for PNC such a meanaverage model was found inadequate.…”

Section: Introductionmentioning

confidence: 99%

Pressure−Volume−Temperature Dependence of Polypropylene/Organoclay Nanocomposites

Utracki

Simha

2004

Macromolecules

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Received August 24, 2004; Revised Manuscript Received October 7, 2004 ABSTRACT: The pressure-volume-temperature (PVT) dependencies of commercial polypropylene melt (PP) and its nanocomposites containing X wt % of organoclay (Cloisite-15A, or C15) and 2X w t%o fa compatibilizer were determined at T ) 450-530 K and P ) 0.1-190 MPa. C15 was used at concentrations: X ) 0, 2, and 4 wt %. Three functionalized PP's were used as compatibilizers: two maleated and one grafted with glycidyl methacrylate. Incorporation of X ) 2 wt % C15 into PP resulted in reduction of specific volume by ∆V ≈ 1%, but that of free volume (hole) fraction by ∆h ≈ 5%. The latter quantity was computed from the Simha-Somcynsky lattice-hole equation of state. Furthermore, at constant T and P the hole fraction was found to be linearly related to the bulk-average energetic interaction parameter and to be a sensitive indicator of structural changes. In binary (polymer + organoclay) systems ∆h is linearly related to the interlayer spacing, d 001. So, where statements from the previous paper are repeated or there are similarities, this is done for purposes of comparison. In three-component systems (with a compatibilizer) the proportionality has been preserved, but large changes of ∆h result in relatively small changes of d001. Mechanical properties hardly correlate with either ∆h or d001, as polymer/ compatibilizer morphology and crystallinity complicate the behavior.

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“…Other equation of state approaches applied to polymer blends include the Sanchez-Lacombe lattice fluid theory [24,25], the Simha-Somcynsky hole theory [26], the Jain-Simha cell-hole theory [27,28], the modified cell model Dee and Walsh [29,30] and the Patterson equation of state [31]. An approach termed an oriented quasichemical approximation was proposed to better predict the phase behavior of specific interacting blends where non-random orientation is expected [32].…”

Section: Equation Of State (Eos)mentioning

confidence: 99%

Historical Perspective of Advances in the Science and Technology of Polymer Blends

Robeson

2014

Polymers

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This paper will review the important developments in the field of polymer blends. The subject of polymer blends has been one of the most prolific areas in polymer science and technology in the past five decades judging from publications and patents on the subject. Although a continuing important subject, the peak intensity occurred in the 1970s and 1980s. The author has been active in this area for five decades and this paper is a recollection of some of the important milestones/breakthroughs in the field. The discussion will cover the development of the theory relevant to polymer blends, experimental methods, approaches to achieve compatibility in immiscible/incompatible blends, the nature of phase separation and commercial activity.

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On the Statistical Thermodynamics of Multicomponent Fluids: Equation of State

Cited by 95 publications

References 3 publications

Pressure-volume-temperature properties and free volume parameters of PEO/PMMA blends

Pressure-volume-temperature properties and free volume parameters of PEO/PMMA blends

Pressure−Volume−Temperature Dependence of Polypropylene/Organoclay Nanocomposites

Historical Perspective of Advances in the Science and Technology of Polymer Blends

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