| People | Locations | Statistics |
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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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Price, Gareth J.
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023The effect of polymer end-group on the formation of styrene – maleic acid lipid particles (SMALPs)citations
- 2018Comparative study of the modification of multi-wall carbon nanotubes by gamma irradiation and sonochemically assisted acid etchingcitations
- 2018Ultrasound Promoted Synthesis and Properties of Chitosan Nanocomposites Containing Carbon Nanotubes and Silver Nanoparticlescitations
- 2018Sonochemical Modification of Carbon Nanotubes for Enhanced Nanocomposite Performancecitations
- 2017Preparation, morphology and sonication time dependence of silver nanoparticles in amphiphilic block copolymers of PEO with polystyrene or PMMAcitations
- 2016Eco-friendly synthesis and catalytic application of chitosan/gold/carbon nanotube nanocomposite filmscitations
- 2014Preparation of gold nanoparticles in polystyrene–PEO block copolymerscitations
- 2014Synergistic effects of combining ultrasound with the Fenton process in the degradation of Reactive Blue 19citations
- 2014Sonochemical characterisation of ultrasonic dental descalerscitations
- 2011Effects of Temperature and Polymer Composition upon the Aqueous Solution Properties of Comblike Linear Poly(ethylene imine)/Poly(2-ethyl-2-oxazoline)-Based Polymerscitations
- 2011Deposition of poly(ethyleneimine)/poly(2-ethyl-2-oxazoline) based comb-branched polymers onto polypropylene nonwoven fabric using the layer-by-layer technique. selected properties of the modified materialscitations
- 2004Surface modification of calcium carbonates studied by inverse gas chromatography and the effect on mechanical properties of filled polypropylenecitations
- 2004Investigation of radical intermediates in polymer sonochemistrycitations
- 2004Chromatographic estimation of filler surface energies and correlation with photodegradation of kaolin filled polyethylenecitations
- 2004Correlation of mechanical properties of clay filled polyamide mouldings with chromatographically measured surface energiescitations
Places of action
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article
Effects of Temperature and Polymer Composition upon the Aqueous Solution Properties of Comblike Linear Poly(ethylene imine)/Poly(2-ethyl-2-oxazoline)-Based Polymers
Abstract
A range of well-defined, sparsely grafted, comblike linear poly(ethylene imine)/poly(2-ethyl-2-oxazoline) (LPEI-comb-PEtOx) and comblike linear poly(ethylene imine)/linear poly(ethylene imine) (LPEI-comb-LPEI) polymers with various degrees of polymerization of both main and side chains were prepared. Their aqueous solution properties were investigated by means of dynamic light scattering (DLS) and small-angle neutron scattering (SANS) over a temperature range of 25-65 °C. For LPEI-comb-LPEI polymers the particle distributions were mono-, bi-, or trimodal depending upon the temperature and/or polymer composition. The particles tended to decrease in size upon heating due to the weakening of intra- and interchain hydrogen bonds between -NH groups of the polymers and also with water molecules. However, the aggregates formed from the LPEI-comb-LPEI polymers featuring longer main chains, shorter branches, and lower grafting densities were more resistant to heat-induced disassociation. LPEI-comb-PEtOx particles featured smoother temperature variations of hydrodynamic radius and typically bimodal distributions. The shape and structure of the small LPEI-comb-PEtOx aggregates (average radius ∼6 nm) as well as their temperature evolution were studied by SANS. A variety of structures were observed, depending upon the polymer composition. The LPEI-comb-PEtOx polymers with low grafting densities and short branches formed elongated aggregates, whereas particles of spherical core-shell structure were observed for the more densely grafted polymer with longer branches. Spherical or rodlike aggregates were monitored in LPEI-comb-LPEI aqueous solutions.