Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi

H-2 n.m.r. study of a deformed poly(dimethylsiloxane) rubber network below and above the crystallization temperature (CROSBI ID 81453)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Valić, Srećko ; Sotta, Paul ; Deloche, Bertrand H-2 n.m.r. study of a deformed poly(dimethylsiloxane) rubber network below and above the crystallization temperature // Polymer, 40 (1999), 4; 989-994. doi: 10.1016/S0032-3861(98)00305-X

Podaci o odgovornosti

Valić, Srećko ; Sotta, Paul ; Deloche, Bertrand

engleski

H-2 n.m.r. study of a deformed poly(dimethylsiloxane) rubber network below and above the crystallization temperature

Deuterium n.m.r. is used to observe the change in segmental dynamics and orientation at the crystallization temperature T-c in a uniaxially stretched poly(dimethylsiloxane) (PDMS) network. Experiments are performed over a wide temperature range (235-294 K). The amorphous parts of the chains are probed via perdeuterated n-octane probe molecules dissolved in the network. H-2 n.m.r. spectra change drastically within a small temperature interval of 4 K in the vicinity of T-c. Above T-c, the spectra reflect the uniaxial dynamics of the octane probes. In the vicinity of T-c, the spectra are sensitive to the internal dynamics of the octane probe and indicate a heterogeneity in the mobility of the network chains. The isotropic lines obtained for T less than or equal to T-c confirm that the local constraints introduced by the external deformation disappear in the amorphous part of the sample in the presence of the crystalline phase.

2H n.m.r.; crystallization; PDMS

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

40 (4)

1999.

989-994

objavljeno

0032-3861

10.1016/S0032-3861(98)00305-X

Povezanost rada

Kemija

Poveznice
Indeksiranost