| 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 |
|
Zekonyte, Jurgita
University of Portsmouth
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2022Investigating the Effects of H2O Interaction with Rainscreen Façade ACMs During Fire Exposurecitations
- 2021The effect of temperature on the erosion of polyurethane coatings for wind turbine leading edge protectioncitations
- 2021Wear of 17-4 PH stainless steel patterned surfaces fabricated using selective laser meltingcitations
- 2020Characterization of Nano-Mechanical, Surface and Thermal Properties of Hemp Fiber-Reinforced Polycaprolactone (HF/PCL) Biocompositescitations
- 2020Planning for metal additive manufacturingcitations
- 2020Structure and mechanical properties of Ce-La alloys containing 3- 10 wt. % Lacitations
- 2016Titanate nanotubes for reinforcement of a poly(ethylene oxide)/chitosan polymer matrixcitations
- 2016Titanate nanotubes for reinforcement of a poly(ethylene oxide)/chitosan polymer matrixcitations
- 2016Titanate nanotubes for reinforcement of a poly(ethylene oxide)/chitosan polymer matrixcitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatings: nanoscale friction and wearcitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatings:nanoscale friction and wearcitations
- 2015Friction force microscopy analysis of self-adaptive W-S-C coatingscitations
- 2014Nanomechanical assessment of human and murine collagen fibrils via atomic force microscopy cantilever-based nanoindentationcitations
- 2014WS2 nanoparticles - potential replacement for ZDDP and friction modifier additivescitations
- 2014Frictional properties of self-adaptive chromium doped tungsten-sulfur-carbon coatings at nanoscalecitations
- 2009Angle resolved XPS characterization of cationic polyacrylamidescitations
- 2006Defect formation and transport in La0.95Ni0.5Ti0.5O3-δcitations
- 2005Interfacial effects on the electrical properties of multiferroic BiFeO3/Pt/Si thin film heterostructurescitations
- 2005Tailoring of the PS surface with low energy ionscitations
- 2004Structural and chemical surface modification of polymers by low-energy ions and influence on nucleation, growth and adhesion of noble metals
- 2003Etching rate and structural modification of polymer films during low energy ion irradiationcitations
- 2003Mechanisms of argon ion-beam surface modification of polystyrenecitations
Places of action
| Organizations | Location | People |
|---|
article
Angle resolved XPS characterization of cationic polyacrylamides
Abstract
In many applications surfaces are modified using polymer films and the polymers used are often complex copolymers. In biomedical applications it is critical to determine the surface properties of a substrate as it is these that mediate the cellular interactions. The surface structure of copolymer films can only rarely be established from their bulk composition alone. In this study angle resolved XPS was used to build a model of the structure of copolymer films produced on glass substrates from a family of poly(acrylamide) copolymers containing cationic blocks. The thickness of the copolymer films was demonstrated to be dependent on the concentration of the polymer solution and the ratio of non-cationic to cationic blocks in the copolymer. The data demonstrated that the cationic blocks of the copolymer preferentially segregated to the glass surface and the non-cationic poly(acrylamide) blocks preferentially segregated to the air–vacuum interface. A low concentration of the cationic functional groups was present throughout the poly(acrylamide) layer and it was suggested that this resulted from a small fraction of the cationic blocks being pulled into the poly(acrylamide) layer at points along the polymer chain where the two blocks are connected. Evidence of a thin surface hydrocarbon contamination layer was also observed.