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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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Hvilsted, S.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2018Visualization of the distribution of surface-active block copolymers in PDMS-based coatingscitations
- 2016Green silicone elastomer obtained from a counterintuitively stable mixture of glycerol and PDMScitations
- 2015Preparing mono-dispersed liquid core PDMS microcapsules from thiol-ene-epoxy-tailored flow-focusing microfluidic devicescitations
- 2015Polydimethylsiloxane microspheres with poly(methyl methacrylate) coating: Modelling, preparation, and characterizationcitations
- 2015Investigation Into Accessible Surface Vinyl Concentrations of Nonstoichiometric PDMS Microspheres from Hydrosilylation Reactions and Their Further Crosslinking Reactionscitations
- 2014Encapsulated <scp>PDMS</scp> Microspheres with Reactive Handlescitations
- 2014Preparation and Characterization of Silicone Liquid Core/Polymer Shell Microcapsules via Internal Phase Separationcitations
- 2014PEG-Bis Phosphonic Acid Based Ionic Supramolecular Structurescitations
- 2014Control of PDMS crosslinking by encapsulating a hydride crosslinker in a PMMA microcapsulecitations
- 2014Synthesis of telechelic vinyl/allyl functional siloxane copolymers with structural controlcitations
- 2014Visualisation and characterisation of heterogeneous bimodal PDMS networkscitations
- 2012Properties and semicrystalline structure evolution of polypropylene/montmorillonite nanocomposites under mechanical loadcitations
- 2007Synthesis, characterization and photoinduction of optical anisotropy in liquid crystalline diblock azo-copolymerscitations
- 2006Controlling Interface Adhesion and Fracture Properties in Composite Materials by Plasma Polymerisation
- 2006Controlling Interface Adhesion and Fracture Properties in Composite Materials by Plasma Polymerisation
- 2002Photoorientation of a liquid crystalline polyester with azobenzene side groups. 1. Effects of irradiation with linearly polarized blue lightcitations
Places of action
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article
Encapsulated <scp>PDMS</scp> Microspheres with Reactive Handles
Abstract
<jats:sec><jats:label /><jats:p>Cured poly(dimethyl siloxane) microspheres are prepared by an emulsion polymerization reaction of silicone droplets in a continuous aqueous phase. The commonly used PDMS elastomer, Sylgard 184 from Dow Corning, is used as the dispersed phase. PDMS is polymerized and cross‐linked by reacting vinyl end‐terminated poly(dimethyl siloxane) oligomers with dimethylmethylhydrogen siloxane cross‐linkers via the hydrosilylation reaction using platinum catalyst and heat. Weight ratios of 10:1, 20:1, and 25:1 of the PDMS mixtures are used and emulsified in water using two water‐soluble surfactants as stabilizers (sodium dodecyl sulphate and polyvinylalcohol). The temperature is subsequently increased to accelerate the rate of cross‐linking and prevent the prepolymer droplets from coalescing. The particle size distribution of cured PDMS microspheres is determined by Mastersizer (laser diffraction). Finally, cured PDMS microspheres are coated with poly(methyl methacrylate) using a chemical process (solvent evaporation technique). Three solvents are used in three different experiments: dichloromethane, tetrahydrofuran, and acetone. The composition and morphology of the cured PDMS microspheres and PMMA coated cured PDMS microspheres are characterized by differential scanning calorimetry, Fourier transform infrared spectroscopy in attenuated‐total‐reflection mode, optical microscopy, and thermogravimetric analysis. Curing profiles of PDMS elastomer with different ratios between the silicone elastomer base and the silicone elastomer curing agent are obtained. The reactivity of cured PDMS microspheres and PMMA coated cured PDMS microspheres are measured by rheology to evaluate the efficiency of the PMMA coating.<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mame201300319-gra-0001.png" xlink:title="mame201300319-gra-0001" /></jats:p></jats:sec>