Azeotropy in Terpolymerization

Ríos, Leonardo; Guillot, Jérôme

doi:10.1080/00222337808063181

Cited by 32 publications

(14 citation statements)

References 10 publications

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“…They derived a fourth-degree polynomial in terms of the monomer mole fraction, f i 1) , and solved it for its zeros. Later, Rios and Guillot [8] used the same fourth-degree equation and obtained the same azeotropic composition results following a different solution approach. In addition, special cases in azeotropy characteristics for terpolymers were introduced, where the azeotropy is valid for only one of the monomers or where certain conditions are satisfied with respect to two (out of the three) monomers (concept of partial azeotropy).…”

Section: Introductionmentioning

confidence: 85%

“…Fig. 2 illustrates an example for the terpolymer system, MMA/ styrene (Sty)/4-vinylpyridine (4VP) [8]. If, of course, a ternary azeotrope exists, then this ternary azeotropic point can be viewed as the intersection of three unitary azeotropic curves.…”

Section: Unitary Azeotropic Curvesmentioning

confidence: 98%

“…This region is located around the ternary azeotrope. Rios and Guillot [8] stated that other domains along the partial azeotropy curves might also correspond to small compositional changes. These domains may be situated along unitary or binary azeotropy lines, as shown by the shaded (grey) areas inside Figs.…”

Section: Graphical and Analytical Solutionsmentioning

confidence: 99%

“…Again, if a ternary azeotrope exists, then it can be viewed as the intersection of three binary azeotropic curves, as illustrated in Fig. 3 for the same terpolymer system [8] …”

Section: Binary Azeotropic Curvesmentioning

confidence: 99%

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Investigations on Azeotropy in Multicomponent Polymerizations

2010

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This work aims at presenting a general approach to locate azeotropic points in multicomponent polymerizations. Typically, for azeotropy studies in ternary systems, the literature is dominated by graphical solutions which may only be approximate. The approach consists of obtaining an azeotropic composition through a direct numerical solution of the relevant terpolymerization composition equations. The numerical approach is capable of locating the correct azeotropic composition for any ternary or multicomponent system, if such a point exists, and is illustrated via three case studies. Compared to prior efforts for azeotropic composition calculations in the literature, the presented numerical approach can be considered as general, direct, reliable, and more straightforward.

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Section: Introductionmentioning

confidence: 85%

Section: Unitary Azeotropic Curvesmentioning

confidence: 98%

Section: Graphical and Analytical Solutionsmentioning

confidence: 99%

“…Again, if a ternary azeotrope exists, then it can be viewed as the intersection of three binary azeotropic curves, as illustrated in Fig. 3 for the same terpolymer system [8] …”

Section: Binary Azeotropic Curvesmentioning

confidence: 99%

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Investigations on Azeotropy in Multicomponent Polymerizations

2010

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“…In the case of the terpolymerization one can reduce the non-linear set of equations (4.13) to a single equation of fourth degree [121][122][123], for which a rigorous explicit solution is obtained and the conditions of its existence are analyzed [121].…”

Section: Azeotropymentioning

confidence: 99%

Modern aspects of quantitative theory of free-radical copolymerization

Кучанов

Free Radical Copolimerization Dispersions Glassy State Relaxation

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Organotin polymers. XII. Azeotropy in binary and ternary copolymerization reactions of di(tri‐n‐butyltin) itaconate with acrylic acid esters, styrene, and acrylonitrile

Shaaban

Mahmoud

Messiha

1988

J of Applied Polymer Sci

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SynopsisBinary and ternary copolymerizations of di(tri-n-butyltin) itaconate (TBTI) with methyl acrylate (MA), ethyl acrylate (EA), n-butyl acrylate (BA), styrene (ST), and acrylonitrile (AN) were carried out in solution at 70°C in the presence of a free-radical initiator. Experimental terpolymerization data agreed well with calculations based on the Alfrey -Goldfinger equation. The determination of unitary, binary, and ternary azeotropies of the various systems studied was easily handled by a computer. Ternary azeotropic compositions for TBTI-MA-AN and TBTI-EA-AN systems were 37 : 48 : 15 and 9 : 80 : 11 mol %, respectively. Also, "Pseudo-azeotropic" regions were identified where the deviation between feed and polymer compositions is very small.

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Azeotropy in Terpolymerization

Cited by 32 publications

References 10 publications

Investigations on Azeotropy in Multicomponent Polymerizations

Investigations on Azeotropy in Multicomponent Polymerizations

Modern aspects of quantitative theory of free-radical copolymerization

Organotin polymers. XII. Azeotropy in binary and ternary copolymerization reactions of di(tri‐n‐butyltin) itaconate with acrylic acid esters, styrene, and acrylonitrile

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