| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Mortensen, Kell
University of Copenhagen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2024Interpenetrated and Bridged Nanocylinders from Self-Assembled Star Block Copolymerscitations
- 2024Low Tg, strongly segregated, ABA triblock copolymers: a rheological and structural studycitations
- 2021Small-Angle Neutron Scattering Study of the Structural Relaxation of Elongationally Oriented, Moderately Stretched Three-Arm Star Polymerscitations
- 2021The microscopic distribution of hydrophilic polymers in interpenetrating polymer networks (IPNs) of medical grade siliconecitations
- 2020Threading-Unthreading Transition of Linear-Ring Polymer Blends in Extensional Flowcitations
- 2020Stretch and orientational mode decoupling in relaxation of highly stretched polymer meltscitations
- 2020Stretch and orientational mode decoupling in relaxation of highly stretched polymer meltscitations
- 2019Molecular origin of strain hardening in blend of ring and linear polystyrene
- 2019Molecular origin of strain hardening in blend of ring and linear polystyrene
- 2018On the Morphological Behavior of ABC Miktoarm Stars Containing Poly(cis 1,4-isoprene), Poly(styrene), and Poly(2-vinylpyridine)citations
- 2018Stretching PEO-PPO Type of Star Block Copolymer Gelscitations
- 2017All-natural bio-plastics using starch-betaglucan compositescitations
- 2017All-natural bio-plastics using starch-betaglucan compositescitations
- 2017On the properties of poly(isoprene-b-ferrocenylmethyl methacrylate) block copolymerscitations
- 2016Direct monitoring of calcium-triggered phase transitions in cubosomes using small-angle X-ray scattering combined with microfluidicscitations
- 2016Plant-crafted starches for bioplastics productioncitations
- 2015Relaxation Mechanism and Molecular Structure Study of Polymer Blends by Rheological and SANS experiments
- 2015The Ordered Structure of Block-Copolymer Systems Studied by Combined Small-Angle Scattering and Rheology
- 2015Entangled Polymer Melts in Extensional Flow - Characterization by Combined Rheology and Small-Angle Neutron Scattering
- 2015Entangled Polymer Melts in Extensional Flow - Characterization by Combined Rheology and Small-Angle Neutron Scattering
- 2014Soft Matter Studies using Small-Angle Scattering Methods
- 2014Characterization of Polymer Blends
- 2013WillItFitcitations
- 2008Micellar Structures of Hydrophilic/Lipophilic and Hydrophilic/Fluorophilic Poly(2-oxazoline) Diblock Copolymers in Watercitations
Places of action
| Organizations | Location | People |
|---|
article
Stretch and orientational mode decoupling in relaxation of highly stretched polymer melts
Abstract
We study the relaxation of linear polymer molecules following fast uniaxial extension. Polystyrene melts of Mw=80 kg/mol are elongated at a Rouse-Weissenberg number WiR=1.5 to Hencky strain ε=3, where steady state is approached using a filament stretch rheometer. Samples were quenched for different duration of stress relaxation at constant Hencky strain to preserve molecular conformation by rapid cooling below the glass transition temperature. Expansion of ex situ small-angle neutron-scattering data in spherical harmonics shows experimental evidence for the decoupling of local and global relaxation phenomena from highly stretched states. This work demonstrates both that the decoupling can be seen in the spherical harmonics expansion and that it can be seen even for short chains provided the initial state is highly oriented.