Hawke, Laurence George Demosthenis
[UCL]
Read, Daniel John
[University of Leeds]
(eng)
This research work focuses on the microscopic description of constraint release (CR) events in melts of branched polymers. In this respect, it models CR events by means of Rouse-like hops. Two cases are examined: (i) CR events mediated by the release of backbone-backbone entanglements, and (CR) events mediated by the rlease of backbone-arm entanglements. The derived model predicts strain hardening (thinning) at extension (shear) during start-up of the flow. The maximum stretch, however, becomes dependent on flow-rate.
Bibliographic reference |
Hawke, Laurence George Demosthenis ; Read, Daniel John. Incorporating Constraint Release events in a pom-pom melt.8th Hellenic Society Symposium on Polymer Science & Technology (Heraklion, Crete, Greece). |
Permanent URL |
http://hdl.handle.net/2078/181369 |