| 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 |
|
Madsen, Peter Jeppe
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Preparation of Block Copolymer-Stabilized Microspheres from Commercial Plastics and Their Use as Microplastic Proxies in Degradation Studiescitations
- 2023Enhancement of viscoelastic property of MABS processed by melt compounding and injection moldingcitations
- 2023Antimicrobial silicone skin adhesives facilitated by controlled octenidine release from glycerol compartmentscitations
- 2023Synthesis of poly(ethylene glycol)-co-poly(caprolactone) di- and triblock copolymers and effect of architecture, dispersity and end-functionalisation on their aqueous self-assemblycitations
- 2022One reaction to make highly stretchable or extremely soft silicone elastomers from easily available materialscitations
- 2021Toward a Design for Flowable and Extensible Ionomers: An Example of Diamine-Neutralized Entangled Poly(styrene-co-4-vinylbenzoic acid) Ionomer Meltscitations
- 2021Frequency dependent behavior of silicone slide-ring elastomers
- 2021Novel polyrotaxane cross-linkers as a versatile platform for slide-ring siliconecitations
- 2021Super-stretchable silicone elastomer applied in low voltage actuatorscitations
- 2020Linear Viscoelastic and Nonlinear Extensional Rheology of Diamine Neutralized Entangled Poly(styrene-co-4-vinylbenzoic acid) Ionomer Melts
- 2020Utilizing slide-ring cross-linkers in polysiloxane networks for softer dielectric elastomer actuatorscitations
- 2019Rheological and mechanical properties of polystyrene with hydrogen bonding
- 2019Incorporating polyrotaxane materials in dielectric elastomer actuators
- 2018Enhancing the electro-mechanical properties of polydimethylsiloxane elastomers through blending with poly(dimethylsiloxane-co-methylphenylsiloxane) copolymerscitations
- 2018Enhancing the electro-mechanical properties of polydimethylsiloxane elastomers through blending with poly(dimethylsiloxane-co-methylphenylsiloxane) copolymers Acknowledgments
- 2018Fabrication of microstructured binary polymer brush "corrals" with integral pH sensing for studies of proton transport in model membrane systemscitations
- 2008Supercritical fluids applied to the sol–gel process for preparation of AEROMOSILS/palladium particle nanocomposite catalystcitations
- 2008Facile Synthesis of Well-Defined Hydrophilic Methacrylic Macromonomers Using ATRP and Click Chemistrycitations
Places of action
| Organizations | Location | People |
|---|
article
Toward a Design for Flowable and Extensible Ionomers: An Example of Diamine-Neutralized Entangled Poly(styrene-co-4-vinylbenzoic acid) Ionomer Melts
Abstract
Processing ionomers is complicated by their ability to exhibitbrittle fracture even in the melt state. This work introduces a new strategy for providing ionomers with good flowability, extensibility,and superior strain hardening. Diamine-neutralized entangled poly(styrene-co-4-vinylbenzoic acid) ionomers were studied using small-amplitude oscillatory shear and nonlinear uniaxial extension measurements. The parent molecule, poly(styrene-co-4-vinylbenzoic acid), has a molar mass of 85,400 g/mol, well above the entanglement molar mass of polystyrene (13,300 g/mol). Neutralization was performed using “Jeffamine” type diamines with different molar masses. The resulting neutralized ionomers presented relaxation processes similar to entangled polymers but with faster terminal relaxation, suggesting negligible ionic cluster formation and indicating a diluting effect of the introduced diamines. This feature provides the ionomers with good flowability and facilitates their processing. In extensional measurements, these ionomers displayed superior strain hardening compared to the parent molecule, which also proved to be adjustable via changing diamine length. The stress growth curves showed a maximum stress, followed by stress overshoot and steady state at larger strain. The stress maximum and overshoot were correlated with ionic sticker disassociation, as evidenced by phase separation-induced color change during filament stretching. At high stretch rates, the stickers disassociate abruptly to accommodate the strain, so that the sticker disassociation time decreased with increasing stretch rates. Good extensibility (up toHencky strain 7) was achieved via ionic sticker reassociation and entanglements.