Predicting the linear viscoelastic properties of monodisperse and polydisperse polystyrenes and polyethylenes
dc.contributor.author | Larson, Ronald G. | en_US |
dc.contributor.author | Pattamaprom, Cattaleeya | en_US |
dc.date.accessioned | 2006-09-08T20:05:03Z | |
dc.date.available | 2006-09-08T20:05:03Z | |
dc.date.issued | 2001-11 | en_US |
dc.identifier.citation | Pattamaprom, Cattaleeya; Larson, Ronald G.; (2001). "Predicting the linear viscoelastic properties of monodisperse and polydisperse polystyrenes and polyethylenes." Rheologica Acta 40(6): 516-532. <http://hdl.handle.net/2027.42/42206> | en_US |
dc.identifier.issn | 0035-4511 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/42206 | |
dc.description.abstract | For linear homopolymers the linear viscoelastic predictions of the double reptation model are compared to those of a recent, more detailed model, the “dual constraint model” and to experimental data for monodisperse, bidisperse, and polydisperse polystyrene melts from several laboratories. A mapping procedure is developed that links the empirical parameter K of the double reptation model to the molecular parameter τ e of the dual constraint model, thereby allowing the parameter K to be related to molecular characteristics such as the monomeric friction coefficient ζ. Once K (or τ e ) are determined from data for monodisperse polymers, the double reptation model predicts that for fixed weight-average molecular weight M w , the zero-shear viscosity η 0 increases slightly with increasing polydispersity M w /M n for log normal distributions, while for the dual constraint model η 0 is almost independent of M w /M n . Experimental data for polystyrenes show no increase (or even a slight decrease) in η 0 with increasing M w /M n at fixed M w , indicating a deficiency in the double reptation model. The dual constraint theory is also applied to hydrogenated polybutadienes and commercial high-density polyethylenes, where we believe it can be used to indicate the presence of long side branches, which are difficult to detect by other analytic methods. | en_US |
dc.format.extent | 394919 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Springer-Verlag; Springer-Verlag Berlin Heidelberg | en_US |
dc.subject.other | Key Words Dual Constraint Model | en_US |
dc.subject.other | Double Reptation Model | en_US |
dc.subject.other | Polydispersity | en_US |
dc.subject.other | Polyethylene | en_US |
dc.subject.other | Legacy | en_US |
dc.subject.other | Hydrogenated Polybutadiene | en_US |
dc.subject.other | Polystyrene | en_US |
dc.title | Predicting the linear viscoelastic properties of monodisperse and polydisperse polystyrenes and polyethylenes | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Chemical Engineering University of Michigan Ann Arbor, MI 48109, USA e-mail: rlarson@engin.umich.edu, US | en_US |
dc.contributor.affiliationother | Department of Chemical Engineering Thammasat University, Pratumthani 12121 Thailand, TH | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/42206/1/397-40-6-516_10400516.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/s003970100196 | en_US |
dc.identifier.source | Rheologica Acta | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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