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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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Shaver, Michael P.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Performance polyamides built on a sustainable carbohydrate corecitations
- 2024Mechanical Properties and Recyclability of Fibre Reinforced Polyester Compositescitations
- 2023Degradable and Reprocessable Resins from a Dioxolanone Cross-Linkercitations
- 2023Understanding poly(ethylene terephthalate) degradation using gas-mediated simulated recyclingcitations
- 2020Mechanical Recycling of Packaging Plastics: A Reviewcitations
- 2018Polymeric hole-transport materials with side-chain redox-active groups for perovskite solar cells with good reproducibilitycitations
- 2018Polymeric hole-transport materials with side-chain redox-active groups for perovskite solar cells with good reproducibilitycitations
- 2018Thermal, optical and structural properties of blocks and blends of PLA and P2HEBcitations
- 2018Functionalizable Stereocontrolled Cyclopolyethers by Ring-Closing Metathesis as Natural Polymer Mimicscitations
- 2018Morphology of Poly(styrene-co-butadiene) Random Copolymer Thin Films and Nanostructures on a Graphite Surfacecitations
- 2017Thermal, structural and degradation properties of an aromatic-aliphatic polyester built through ring-opening polymerisationcitations
- 2017Poly(styrene-co-butadiene) Random Copolymer Thin Films and Nanostructures on a Mica Surface: Morphology and Contact Angles of Nanodropletscitations
- 2017Olefin cross metathesis and ring-closing metathesis in polymer chemistrycitations
- 2016Installing Multiple Functional Groups on Biodegradable Polyesters via Post-Polymerization Olefin Cross-Metathesiscitations
- 2015Aluminum Salen and Salan Polymerization Catalystscitations
- 2014Tuning ligand electronics and peripheral substitution on cobalt salen complexes:Structure and polymerisation activitycitations
- 2014Tuning ligand electronics and peripheral substitution on cobalt salen complexescitations
- 2013Aluminium salophen and salen initiators in the ring-opening polymerisation of rac-lactide and rac-β-butyrolactone::Electronic effects on stereoselectivity and polymerisation ratescitations
- 2013Poly(lactic acid) polymer stars built from early generation dendritic polyolscitations
- 2013Tacticity-induced changes in the micellization and degradation properties of poly(lactic acid)-block-poly(ethylene glycol) copolymerscitations
- 2013Aluminium salophen and salen initiators in the ring-opening polymerisation of rac-lactide and rac-β-butyrolactone:citations
- 2012Control of thermal properties and hydrolytic degradation in poly(lactic acid) polymer stars through control of isospecificity of polymer armscitations
- 2012Anilido-aldimine aluminum complexes:citations
- 2012Controlled radical polymerization mediated by Amine-Bis(phenolate) Iron(III) complexescitations
- 2012Anilido-aldimine aluminum complexes::Synthesis, characterization and lactide polymerizationcitations
- 2010Tacticity control in the synthesis of poly(lactic acid) polymer stars with dipentaerythritol corescitations
- 20084.4,5,5-tetraphenyl-1,3,2-dioxaborolanecitations
- 2000Trans alkenylpyridine and alkenylamine complexes of platinum
Places of action
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article
Morphology of Poly(styrene-co-butadiene) Random Copolymer Thin Films and Nanostructures on a Graphite Surface
Abstract
We studied the morphology of poly(styrene-co-butadiene) random copolymers on a graphite surface. Polymer solutions were spin coated onto graphite, at various concentrations and molecular weights. The polymer films and nanostructures were imaged using atomic force microscopy. Above the overlap concentration, thin films formed. However, total wetting did not occur, despite the polymers being well above their Tg. Instead, dewetting was observed, suggesting the films were in a state of metastable equilibrium. At lower concentrations, the polymers formed networks, nanoislands, and nanoribbons. Ordered nanopatterns were observed on the surface; the polymers orientated themselves due to π–π stacking interactions reflecting the crystalline structure of the graphite. At the lowest concentration, this ordering was very pronounced. At higher concentrations, it was less defined but still statistically significant. Higher degrees of ordering were observed with poly(styrene-co-butadiene) than polystyrene and polybutadiene homopolymers as the copolymer’s aromatic rings are distributed along a flexible chain, which maximizes π–π stacking. At the two lowest concentrations, the size of the nanoislands and nanoribbons remained similar with varying molecular weight. However, at higher concentrations, the polymer network features were largest at the lowest molecular weight, indicating that in this case, a large proportion of shorter chains stay on top of the adsorbed ones. The contact angles of the polymer nanostructures remained mostly constant with size, which is due to the strong polymer/graphite adhesion dominating over line tension and entropic effects.