Mechanical and swelling behaviour of crosslinked natural rubber: Consequences of the Flory-Rehner hypothesis

Gregory B. McKenna; Kathleen M. Flynn; Yi Hong Chen

Mechanical and swelling behaviour of crosslinked natural rubber: Consequences of the Flory-Rehner hypothesis

Gregory B. McKenna, Kathleen M. Flynn, Yi Hong Chen

Chemical Engineering

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64 Scopus citations

Abstract

The Frenkel-Flory-Rehner (FFR) hypothesis that the elastic free energy of a swollen network is balanced by the free energy of mixing has been examined using experiments on dicumyl peroxide crosslinked natural rubber. Swelling was performed in good (benzene) and poor solvent (methyl ethyl ketone, ethyl acetate, acetone) conditions. Crosslink density varied from 2.1×10^-5 to 3.0×10^-4 mol cm^-3. It was found that consistency of the FFR hypothesis with experiment requires the Flory-Huggins X parameter to be dependent upon the crosslink density, ν. An apparently universal relation between the value of X_eff and crosslink density, ν, is proposed. For the natural rubber and solvents studied α appears to be independent of solvent.

Original language	English
Pages (from-to)	272-275
Number of pages	4
Journal	Polymer communications Guildford
Volume	29
Issue number	9
State	Published - Sep 1988

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title = "Mechanical and swelling behaviour of crosslinked natural rubber: Consequences of the Flory-Rehner hypothesis",

abstract = "The Frenkel-Flory-Rehner (FFR) hypothesis that the elastic free energy of a swollen network is balanced by the free energy of mixing has been examined using experiments on dicumyl peroxide crosslinked natural rubber. Swelling was performed in good (benzene) and poor solvent (methyl ethyl ketone, ethyl acetate, acetone) conditions. Crosslink density varied from 2.1×10-5 to 3.0×10-4 mol cm-3. It was found that consistency of the FFR hypothesis with experiment requires the Flory-Huggins X parameter to be dependent upon the crosslink density, ν. An apparently universal relation between the value of Xeff and crosslink density, ν, is proposed. For the natural rubber and solvents studied α appears to be independent of solvent.",

author = "McKenna, {Gregory B.} and Flynn, {Kathleen M.} and Chen, {Yi Hong}",

year = "1988",

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T2 - Consequences of the Flory-Rehner hypothesis

AU - McKenna, Gregory B.

AU - Flynn, Kathleen M.

AU - Chen, Yi Hong

PY - 1988/9

Y1 - 1988/9

N2 - The Frenkel-Flory-Rehner (FFR) hypothesis that the elastic free energy of a swollen network is balanced by the free energy of mixing has been examined using experiments on dicumyl peroxide crosslinked natural rubber. Swelling was performed in good (benzene) and poor solvent (methyl ethyl ketone, ethyl acetate, acetone) conditions. Crosslink density varied from 2.1×10-5 to 3.0×10-4 mol cm-3. It was found that consistency of the FFR hypothesis with experiment requires the Flory-Huggins X parameter to be dependent upon the crosslink density, ν. An apparently universal relation between the value of Xeff and crosslink density, ν, is proposed. For the natural rubber and solvents studied α appears to be independent of solvent.

AB - The Frenkel-Flory-Rehner (FFR) hypothesis that the elastic free energy of a swollen network is balanced by the free energy of mixing has been examined using experiments on dicumyl peroxide crosslinked natural rubber. Swelling was performed in good (benzene) and poor solvent (methyl ethyl ketone, ethyl acetate, acetone) conditions. Crosslink density varied from 2.1×10-5 to 3.0×10-4 mol cm-3. It was found that consistency of the FFR hypothesis with experiment requires the Flory-Huggins X parameter to be dependent upon the crosslink density, ν. An apparently universal relation between the value of Xeff and crosslink density, ν, is proposed. For the natural rubber and solvents studied α appears to be independent of solvent.

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M3 - Article

AN - SCOPUS:0024072140

SN - 0263-6476

VL - 29

SP - 272

EP - 275

JO - Polymer communications Guildford

JF - Polymer communications Guildford

IS - 9

ER -

Mechanical and swelling behaviour of crosslinked natural rubber: Consequences of the Flory-Rehner hypothesis

Abstract

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