EnglishIndeksKontaktTelefonbogDTU AlumniPortalenBiblioteketLedige stillinger
Telefonbog
Titel: Stress and neutron scattering measurements on linear polymer melts undergoing steady elongational flow
Type: Journal articleJournal article
Person(er):
Forfatter:  Hassager, Ole (Cwisno: 843)
Technical University of Denmark
Email:

Forfatter:  Mortensen, Kell
Faculty of Life Sciences, University of Copenhagen

Forfatter:  Bach, Anders
Department of Chemical and Biochemical Engineering, Technical University of Denmark

Forfatter:  Almdal, Kristoffer (Cwisno: 38586)
Technical University of Denmark
Email:

Forfatter:  Rasmussen, Henrik K. (Cwisno: 3551)
DTU Mechanical Engineering
Email:

Forfatter:  Pyckhout-Hintzen, Wim
Jülich Centre for Neutron Science-1 & Institute for Complex Systems, Forschungszentrum Jülich
Uddrag: We use small-angle neutron scattering to measure the molecular stretching in polystyrene melts undergoing steady elongational flow at large stretch rates. The radius of gyration of the central segment of a partly deuterated polystyrene molecule is, in the stretching direction, increasing with the steady stretch rate to a power of about 0.25. This value is about half of the exponent observed for the increase in stress value σ, in agreement with Gaussian behavior. Thus, finite chain extensibility does not seem to play an important role in the strongly non-linear extensional stress behavior exhibited by the linear polystyrene melt.
Publiceret: in journal: Rheologica Acta (ISSN: 0035-4511) (DOI: http://dx.doi.org/10.1007/s00397-012-0622-1), vol: 51, issue: 5, pages: 385-394, 2012
DOI:
Se publikationen i DTU Orbit Se publikationen i DTU Orbit

Top
Anker Engelunds Vej 1Bygn. 101A2800 Kgs. LyngbyTlf. 45 25 25 25CVR-nr. 30 06 09 46EAN-numre
CookiesDTU på YouTubeDTU på Facebook