Pregled bibliografske jedinice broj: 6060
The Influence of Network on the Interaction Parameter x in System EPDM Vulcanizate-Solvent
The Influence of Network on the Interaction Parameter x in System EPDM Vulcanizate-Solvent // Thermal and Photo-Induced Oxidation of Polymers and its Inhibition in the Upcoming 21th Century, / Polymer Institute, Slovak Academy of Sciences, Bratislava, (ur.).
Bratislava: Polymer Institute, Slovak Academy of Sciences, Bratislava,, 1996. str. 79,P-14 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 6060 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
The Influence of Network on the Interaction Parameter x in System EPDM Vulcanizate-Solvent
Autori
Hrnjak-Murgić, Zlata ; Jelenčić, Jasenka ; Bravar, Mladen
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Thermal and Photo-Induced Oxidation of Polymers and its Inhibition in the Upcoming 21th Century,
/ Polymer Institute, Slovak Academy of Sciences, Bratislava, - Bratislava : Polymer Institute, Slovak Academy of Sciences, Bratislava,, 1996, 79,P-14
Skup
11th Bratislava IUPAC/FECS International Conference on Polymers
Mjesto i datum
Vysoké Tatry, Slovačka, 24.06.1996. - 28.06.1996
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Crosslink density;EPDM-vulcanizate;Flory-Huggins interaction parameter;network;solvent
Sažetak
Flory-Huggins interaction parameter x was determined for the samples
of EPDM vulcanizates, Keltan 312,812 and their mixtures 312/812. Crosslink density was varied by changing the amount of dicumyl
peroxide added during miling, then samples were vulcanized. The uniaxial sterss-strain
measurements were made on networks to determined the crosslink density.
Prepared samples were swelled in following solvents; cyclohexane,n-xylene,
n-heptane, toluene,tetrahydrofuran and benzene, which interaction parameters x are
well known. The values of interaction parameter xc were obtained for EPDM
vulcanizate and quoted solvents by equilibrium swelling from Flory-Rehner
equation. The values of x, known from literature, were compered with obtained
interaction parameter xc.
Structural factor F"4, additionally characterize the investigated networks,
was determined by equilibrium swelling.
The difference between the interaction parameters xc calculated from
Flory-Erman equation, where is structural factor take in count, and Flory-Rehner
equation indicate that network has an influence on interactions in system
polymer-solvent.
From the results it can be also concluded that the values of x parameter
are distinct for crosslinked and uncroslinked polymer.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo
