2009
DOI: 10.1016/j.jnnfm.2008.08.010
|View full text |Cite
|
Sign up to set email alerts
|

An experimental evaluation of the formation of an instability in monodisperse and polydisperse polystyrenes

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
10
0

Year Published

2011
2011
2024
2024

Publication Types

Select...
8

Relationship

1
7

Authors

Journals

citations
Cited by 19 publications
(10 citation statements)
references
References 33 publications
0
10
0
Order By: Relevance
“…For academic study, it is possible to synthesize and isolate small quantities of nearly monodisperse polymers, but practically all industrial polymers are polydisperse, comprising a broad distribution of molecular weights. It is widely recognized that polydispersity, especially as it pertains to the longest chains, is an important factor in rheological and processing behavior and can have a significant influence on the transient and steady state response to the flow of polymeric systems [1][2][3].…”
Section: A Polydispersity In Entangled Polymersmentioning
confidence: 99%
“…For academic study, it is possible to synthesize and isolate small quantities of nearly monodisperse polymers, but practically all industrial polymers are polydisperse, comprising a broad distribution of molecular weights. It is widely recognized that polydispersity, especially as it pertains to the longest chains, is an important factor in rheological and processing behavior and can have a significant influence on the transient and steady state response to the flow of polymeric systems [1][2][3].…”
Section: A Polydispersity In Entangled Polymersmentioning
confidence: 99%
“…Subsequent rheo-optical experiments have focused on the behaviour of both mono-disperse [41,42,78,79] and polydisperse materials [79]. The observation of an instability in a contraction-expansion (CE) slit flow was first reported by Collis and Mackley, and was termed "viscoelastic disturbance".…”
Section: Instabilitiesmentioning
confidence: 99%
“…The observation of an instability in a contraction-expansion (CE) slit flow was first reported by Collis and Mackley, and was termed "viscoelastic disturbance". Later work [79] identified in detail the form and behaviour of this instability for a range of mono-disperse polystrenes.…”
Section: Instabilitiesmentioning
confidence: 99%
See 1 more Smart Citation
“…However, no stability calculations were performed. Hassell et al [23] present an experimental study of the formation of a polymer flow instability seen in a range of polystyrene melts flowing through contraction−expansion slit geometries and found that the underlying instability mechanism -an oscillating flow perpendicular to the bulk flow -is the same for both polydispersed and monodispersed materials. Although no single critical Weissenberg number was found, stability maps of Weissenberg numbers against material molecular weight in relation to both orientation and chain stretch were obtained.…”
Section: Introductionmentioning
confidence: 99%