Properties of Dilute Solutions of Ethylene-Propylene-Diene Terpolymers in Benzene and Toluene

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Title:Properties of Dilute Solutions of Ethylene-Propylene-Diene Terpolymers in Benzene and Toluene
Creators:
Bohdanecký, Miloslav
Sikora, Antonín
Horský, Jiří
Petrus, Vladimír
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 60, 11, pp. 1950-1970

Abstract

<p>Commercial samples of ethylene-propylene-diene terpolymers (EPDM) and their fractions were characterized by osmometry (number-average molecular weight, second virial coefficient), viscometry (intrisic viscosity) and <sup>1</sup>H NMR spectrometry (mole fraction of propylene monomeric units). The results were analyzed in terms of the two-parameter theory of polymer solutions. Theta temperatures and polymer-solvent interaction parameters were estimated and correlated with composition. Existence of organized structures is indicated by high values of the reduced partial molar entropy parameter y. The increase in y with increasing content of ethylene units is assigned to their association. The results lend support to the previous study on the Huggins viscosity coefficient of EPDM.

Title:Properties of Dilute Solutions of Ethylene-Propylene-Diene Terpolymers in Benzene and Toluene
Creators:
Bohdanecký, Miloslav
Sikora, Antonín
Horský, Jiří
Petrus, Vladimír
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:60
Number:11
Page Range:pp. 1950-1970
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19951950UNSPECIFIED
ID Code:883
Item Type:Article
Deposited On:06 Feb 2009 17:04
Last Modified:06 Feb 2009 16:04

Citation

Bohdanecký, Miloslav; Sikora, Antonín; Horský, Jiří; Petrus, Vladimír (1995) Properties of Dilute Solutions of Ethylene-Propylene-Diene Terpolymers in Benzene and Toluene. Collection of Czechoslovak Chemical Communications, 60 (11). pp. 1950-1970. ISSN 0010-0765

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