Elongational Viscosity of Monodisperse and Bidisperse Polystyrene Melts

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dc.contributor.author	Nielsen, Jens K.
dc.contributor.author	Rasmussen, Henrik K.
dc.contributor.author	Hassager, Ole
dc.contributor.author	McKinley, Gareth H.
dc.date.accessioned	2007-01-23T11:56:00Z
dc.date.available	2007-01-23T11:56:00Z
dc.date.issued	2007-01-23T11:56:00Z
dc.identifier.uri	http://hdl.handle.net/1721.1/35768
dc.description	Submitted to J. Rheol.	en
dc.description.abstract	The startup and steady uniaxial elongational viscosity have been measured for two monodisperse polystyrene melts with molecular weights of 52 kg/mole and 103 kg/mole, and for three bidisperse polystyrene melts. The monodisperse melts show a maximum in the steady elongational viscosity vs. the elongational rate, ε, of about two times 3η_0 whereas the bidisperse melts have a maximum of up to a factor of seven times the Trouton limit of 3η_0. The Wiest model which incorporates anisotropic drag and finite extensibility may be used to interpret the results in molecular terms.	en
dc.description.sponsorship	Class of 1960 Fellowship Funds	en
dc.format.extent	541106 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en_US	en
dc.relation.ispartofseries	06-P-06	en
dc.subject	Filament stretching	en
dc.subject	Extensional viscosity	en
dc.subject	Wiest model	en
dc.title	Elongational Viscosity of Monodisperse and Bidisperse Polystyrene Melts	en
dc.type	Preprint	en