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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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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
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article
Small-Angle Neutron Scattering Study of the Structural Relaxation of Elongationally Oriented, Moderately Stretched Three-Arm Star Polymers
Abstract
We present structural relaxation studies of a polystyrene star polymer after cessation of high-rate extensional flow. During the steady-state flow, the scattering pattern shows two sets of independent correlations peaks, reflecting the structure of a polymer confined in a fully oriented three-armed tube. Upon cessation of flow, the relaxation constitutes three distinct regimes. In a first regime, the perpendicular correlation peaks disappear, signifying disruption of the virtual tube. In a second regime, broad scattering arcs emerge, reflecting relaxation from highly aligned chains to more relaxed, still anisotropic form. New entanglements dominate the last relaxation regime where the scattering pattern evolves to a successively elliptical and circular pattern, reflecting relaxation via reptation.