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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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Koynov, Kaloian
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Pressure Changes Across a Membrane Formed by Coacervation of Oppositely Charged Polymer-Surfactant Systemscitations
- 2023Complex Structures Made Simple – Continuous Flow Production of Core Cross-Linked Polymeric Micelles for Paclitaxel Pro-Drug-Delivery ; ENEngelskEnglishComplex Structures Made Simple – Continuous Flow Production of Core Cross-Linked Polymeric Micelles for Paclitaxel Pro-Drug-Deliverycitations
- 2023Complex Structures Made Simple - Continuous Flow Production of Core Cross-Linked Polymeric Micelles for Paclitaxel Pro-Drug-Deliverycitations
- 2022Plasma polymer barrier layers to control the release kinetics from dissolvable microneedle patchescitations
- 2022Temperature Controlled Mechanical Reinforcement of Polyacrylate Films Containing Nematic Liquid Crystalscitations
- 2021Macroscopic Viscosity of Polymer Solutions from the Nanoscale Analysiscitations
- 2019Nanotopography-Induced Unfolding of Fibrinogen Modulates Leukocyte Binding and Activationcitations
- 2018FRET monitoring of intracellular ketal hydrolysis in synthetic nanoparticlescitations
- 2017Dynamic Heterogeneity in Random Copolymers of Polymethacrylates Bearing Different Polyhedral Oligomeric Silsesquioxane Moieties (POSS)citations
- 2015Polymethacrylates with polyhedral oligomeric silsesquioxane (POSS) moieties: Influence of spacer length on packing, thermodynamics, and dynamicscitations
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article
Dynamic Heterogeneity in Random Copolymers of Polymethacrylates Bearing Different Polyhedral Oligomeric Silsesquioxane Moieties (POSS)
Abstract
<p>Random copolymers - usually considered as dynamically homogeneous with a single glass temperature - can show dynamic heterogeneity by appropriate choice of their repeat units. Random copolymers based on polymethacrylates with polyhedral oligomeric silsesquioxane (POSS) moieties as side groups substituted with seven isobutyl ((i-Bu)<sub>7</sub>POSS-OSiMe<sub>2</sub>(CH<sub>2</sub>)<sub>3</sub>-MA) and 2,4,4-trimethylpentyl ((i-C<sub>8</sub>H<sub>17</sub>)<sub>7</sub>POSS-OSiMe<sub>2</sub>(CH<sub>2</sub>)<sub>3</sub>-MA) groups were synthesized and studied by dielectric spectroscopy, density functional theory, differential scanning calorimetry, and rheology. Two distinct relaxation processes were found by dielectric spectroscopy giving rise to two glass temperatures. In addition, rheology revealed significant broadening of the viscoelastic functions leading eventually to the failure of time-temperature superposition for all copolymer compositions. These results provide signatures of dynamic heterogeneity in a random copolymer.</p>