| 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 |
|
Pastor Pastor, David
Universidad Complutense de Madrid
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Electronic transport properties of Ti-supersaturated Si processed by rapid thermal annealing or pulsed-laser meltingcitations
- 2023Estimation of the melting threshold of Ti supersaturated Si using time resolved reflectometry and haze measurements
- 2023Estimation of the melting threshold of Ti supersaturated Si using time resolved reflectometry and haze measurements
- 2022Electronic transport properties of Ti-supersaturated Si processed by rapid thermal annealing or pulsed-laser meltingcitations
- 2022On the Optoelectronic Mechanisms Ruling Ti-hyperdoped Si Photodiodescitations
- 2015Meyer Neldel rule application to silicon supersaturated with transition metalscitations
- 2014Room-temperature operation of a titanium supersaturated silicon-based infrared photodetectorcitations
- 2013Electrical properties of silicon supersaturated with titanium or vanadium for intermediate band material
- 2013Electrical decoupling effect on intermediate band Ti-implanted silicon layerscitations
- 2013Study of the electrical behavior in Intermediate Band-Si junctions
- 2012Electrical Properties of Intermediate Band (IB) Silicon Solar Cells Obtained by Titanium Ion Implantationcitations
- 2012Interstitial Ti for intermediate band formation in Ti-supersaturated siliconcitations
- 2002Effect of long chain branching on linear-viscoelastic melt properties of polyolefinscitations
Places of action
| Organizations | Location | People |
|---|
article
Effect of long chain branching on linear-viscoelastic melt properties of polyolefins
Abstract
<jats:title>Abstract</jats:title><jats:p>The aim of this review is to provide evidence that rheological testing is a potent tool for characterising polymers in the melt. An effort has been made in order to gather results in conventional and model polyolefins, and correlating them with phenomena occurring at the molecular level. We have focused our interest on long chain branching (LCB). In the case of materials containing long side-chain branches, strong effects on viscosity, elastic character and activation energy of flow are general features. Literature results mostly indicate that the effect of polydispersity on these parameters could be very similar to that expected due to the presence of LCB - notwithstanding that the effects of LCB seem to be stronger than those due to polydispersity for a given molecular weight. Different relaxation processes appear as a consequence of the presence of LCB: slower terminal relaxation behaviour than of linear counterparts, and faster additional branch relaxation at higher frequencies, clearly distinguishable from polydispersity effects. To measure the amount of LCB from limited viscoelastic data and molecular properties seems to be a suitable instrument to explain the rheological features of the different polymers, but it fails when the results are compared with measured values of LCB density in model polymers. The actual framework leads us to say that the number of branches is less important than the topology itself. Therefore, the position and architecture of the branches along the polymer main chain are the main factors that control the rheology of the material.</jats:p>