Elastic Behavior of Hydrophilic Polyurethane Networks Prepared from Poly(dioxolane)

Eric Gérard; Yves Gnanou; Paul Rempp

doi:10.1021/ma00221a017

Elastic Behavior of Hydrophilic Polyurethane Networks Prepared from Poly(dioxolane)

Eric Gérard, Yves Gnanou, Paul Rempp^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Poly(dioxolane) (PDXL) gels are prepared by an end-linking procedure upon reacting, dihydroxy-PDXL chains with a polyisocyanate. Mechanical and swelling measurements are carried out on various swollen samples of PDXL networks. The experimental results concerning the moduli (G) can be explained if account is taken of the contribution of trapped entanglements (Langley-Graessley model). Data arising from equilibrium swelling measurements in dioxane and in water are used to calculate the Flory- Huggins interaction parameter 2 of the system: This method of determination is independent of the type of model used to evaluate the elastic free energy. A linear dependence of 2 versus —the polymer volume fraction of the gel—is found. The degradation behavior of these networks in acidic aqueous media is investigated as well.

Original language	English (US)
Pages (from-to)	4299-4304
Number of pages	6
Journal	Macromolecules
Volume	23
Issue number	19
DOIs	https://doi.org/10.1021/ma00221a017
State	Published - 1990
Externally published	Yes

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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title = "Elastic Behavior of Hydrophilic Polyurethane Networks Prepared from Poly(dioxolane)",

abstract = "Poly(dioxolane) (PDXL) gels are prepared by an end-linking procedure upon reacting, dihydroxy-PDXL chains with a polyisocyanate. Mechanical and swelling measurements are carried out on various swollen samples of PDXL networks. The experimental results concerning the moduli (G) can be explained if account is taken of the contribution of trapped entanglements (Langley-Graessley model). Data arising from equilibrium swelling measurements in dioxane and in water are used to calculate the Flory- Huggins interaction parameter 2 of the system: This method of determination is independent of the type of model used to evaluate the elastic free energy. A linear dependence of 2 versus —the polymer volume fraction of the gel—is found. The degradation behavior of these networks in acidic aqueous media is investigated as well.",

author = "Eric G{\'e}rard and Yves Gnanou and Paul Rempp",

year = "1990",

doi = "10.1021/ma00221a017",

language = "English (US)",

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pages = "4299--4304",

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T1 - Elastic Behavior of Hydrophilic Polyurethane Networks Prepared from Poly(dioxolane)

AU - Gérard, Eric

AU - Gnanou, Yves

AU - Rempp, Paul

PY - 1990

Y1 - 1990

N2 - Poly(dioxolane) (PDXL) gels are prepared by an end-linking procedure upon reacting, dihydroxy-PDXL chains with a polyisocyanate. Mechanical and swelling measurements are carried out on various swollen samples of PDXL networks. The experimental results concerning the moduli (G) can be explained if account is taken of the contribution of trapped entanglements (Langley-Graessley model). Data arising from equilibrium swelling measurements in dioxane and in water are used to calculate the Flory- Huggins interaction parameter 2 of the system: This method of determination is independent of the type of model used to evaluate the elastic free energy. A linear dependence of 2 versus —the polymer volume fraction of the gel—is found. The degradation behavior of these networks in acidic aqueous media is investigated as well.

AB - Poly(dioxolane) (PDXL) gels are prepared by an end-linking procedure upon reacting, dihydroxy-PDXL chains with a polyisocyanate. Mechanical and swelling measurements are carried out on various swollen samples of PDXL networks. The experimental results concerning the moduli (G) can be explained if account is taken of the contribution of trapped entanglements (Langley-Graessley model). Data arising from equilibrium swelling measurements in dioxane and in water are used to calculate the Flory- Huggins interaction parameter 2 of the system: This method of determination is independent of the type of model used to evaluate the elastic free energy. A linear dependence of 2 versus —the polymer volume fraction of the gel—is found. The degradation behavior of these networks in acidic aqueous media is investigated as well.

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U2 - 10.1021/ma00221a017

DO - 10.1021/ma00221a017

M3 - Article

AN - SCOPUS:0025492204

SN - 0024-9297

VL - 23

SP - 4299

EP - 4304

JO - Macromolecules

JF - Macromolecules

IS - 19

ER -

Elastic Behavior of Hydrophilic Polyurethane Networks Prepared from Poly(dioxolane)

Abstract

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