Studies on the mechanical and swelling behavior of polymer networks based on the scaling concept. 4. Extension of the scaling approach to gels swollen to equilibrium in a diluent of arbitrary activity

Ferenc Horkay, M. Zrínyi

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151 Citations (Scopus)

Abstract

An equation of state has been constructed to describe the mechanical and swelling behavior of gels at different activities of the diluent. The actual polymer concentration of the gel and the extent of the deformation of chains were chosen as independent variables. The validity of the proposed relationships was checked on a series of chemically cross-linked poly(vinyl acetate) gels prepared from polymers of different molecular masses and molecular mass distributions, using both toluene and acetone as swelling agents. Elastic moduli were determined through unidirectional compression measurements; deswelling was achieved by the equilibrium swelling degree decreasing method. It was established that the osmotic contribution of the network chains obeys the same power law as semidilute polymer solutions. Agreement between the predicted and experimentally determined relationships has been found.

Original languageEnglish
Pages (from-to)1306-1310
Number of pages5
JournalMacromolecules
Volume15
Issue number5
Publication statusPublished - 1982

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Swelling
Polymers
Gels
Molecular mass
Toluene
Polymer solutions
Acetone
Equations of state
Compaction
Elastic moduli
vinyl acetate

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

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abstract = "An equation of state has been constructed to describe the mechanical and swelling behavior of gels at different activities of the diluent. The actual polymer concentration of the gel and the extent of the deformation of chains were chosen as independent variables. The validity of the proposed relationships was checked on a series of chemically cross-linked poly(vinyl acetate) gels prepared from polymers of different molecular masses and molecular mass distributions, using both toluene and acetone as swelling agents. Elastic moduli were determined through unidirectional compression measurements; deswelling was achieved by the equilibrium swelling degree decreasing method. It was established that the osmotic contribution of the network chains obeys the same power law as semidilute polymer solutions. Agreement between the predicted and experimentally determined relationships has been found.",
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T1 - Studies on the mechanical and swelling behavior of polymer networks based on the scaling concept. 4. Extension of the scaling approach to gels swollen to equilibrium in a diluent of arbitrary activity

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N2 - An equation of state has been constructed to describe the mechanical and swelling behavior of gels at different activities of the diluent. The actual polymer concentration of the gel and the extent of the deformation of chains were chosen as independent variables. The validity of the proposed relationships was checked on a series of chemically cross-linked poly(vinyl acetate) gels prepared from polymers of different molecular masses and molecular mass distributions, using both toluene and acetone as swelling agents. Elastic moduli were determined through unidirectional compression measurements; deswelling was achieved by the equilibrium swelling degree decreasing method. It was established that the osmotic contribution of the network chains obeys the same power law as semidilute polymer solutions. Agreement between the predicted and experimentally determined relationships has been found.

AB - An equation of state has been constructed to describe the mechanical and swelling behavior of gels at different activities of the diluent. The actual polymer concentration of the gel and the extent of the deformation of chains were chosen as independent variables. The validity of the proposed relationships was checked on a series of chemically cross-linked poly(vinyl acetate) gels prepared from polymers of different molecular masses and molecular mass distributions, using both toluene and acetone as swelling agents. Elastic moduli were determined through unidirectional compression measurements; deswelling was achieved by the equilibrium swelling degree decreasing method. It was established that the osmotic contribution of the network chains obeys the same power law as semidilute polymer solutions. Agreement between the predicted and experimentally determined relationships has been found.

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