Structure-Microhardness Relationship in Semi-interpenetrating Polymer Networks

Two series of single-phase, semi-interpenetrating polymer networks (semi-IPNs) based on the same linear polyurethane (LPU) and two different heterocyclic polymer networks (HPNs), respectively, were characterized by the room temperature microhardness H measurement. It is shown that the H value linear...

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Bibliographic Details
Published inJournal of macromolecular science. Physics Vol. 39; no. 2; pp. 131 - 141
Main Authors CALLEJA, F. J. BALTÁ, PRIVALKO, E. G., FAINLEIB, A. M., SHANTALII, T. A., PRIVALKO, V. P.
Format Journal Article
LanguageEnglish
Published Philadelphia, PA Taylor & Francis Group 14.03.2000
Taylor & Francis
Subjects
Applied sciences
Exact sciences and technology
Mechanical properties
Organic polymers
Physicochemistry of polymers
Properties and characterization
Esterurethane polymer
Property composition relationship
Mechanical properties
Ether polymer
Semiinterpenetrating polymer network
Triazine derivative polymer
Experimental study
Microhardness
Glass transition temperature
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Summary:Two series of single-phase, semi-interpenetrating polymer networks (semi-IPNs) based on the same linear polyurethane (LPU) and two different heterocyclic polymer networks (HPNs), respectively, were characterized by the room temperature microhardness H measurement. It is shown that the H value linearly increases with both the mass content of the stiffer component (HPN) and the glass transition temperature of a semi-IPN. The latter dependence can be justified on the assumption that the excess enthalpy of the glass with respect to a hypothetical melt state is a measure of the yield strength of the glassy quasi lattice.
ISSN:0022-2348
1525-609X
DOI:10.1081/MB-100100376