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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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Paulik, Christian
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024Correlations of single‐point parameters of linear rheology and molecular weight distribution of polypropylene homo‐ and copolymerscitations
- 2023The Canadian Journal of Chemical Engineering / Customizing the comonomer incorporation distribution in Ziegler–Natta-based LLDPE: Harnessing the influences of the titanation temperature during catalyst synthesis and of polymerization process parameterscitations
- 2023International Journal of Adhesion and Adhesives / Influence of hollow glass microspheres on 1K epoxy structural adhesive for the automotive industrycitations
- 2021Macromolecular Chemistry and Physics / Catalyst type effects on structure/property relations of polypropylene random copolymerscitations
- 2021SPE Polymers / Influence of material contamination on polypropylene meltfiltration using assembled and fused screenscitations
- 2020Journal of Polymer Research / Investigation of the influence of impurities on the ring-opening polymerisation of L-Lactide from biogenous feedstockcitations
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article
Correlations of single‐point parameters of linear rheology and molecular weight distribution of polypropylene homo‐ and copolymers
Abstract
<jats:title>Abstract</jats:title><jats:p>For various purposes, it is required to compress the shape of the molecular weight distribution (MWD) of polymers into a limited set of parameters. With increasing molecular weight and polydispersity, the MWD data obtained from chromatography become increasingly unreliable due to deficiencies in the high molecular weight region, making estimation via melt rheology more preferable. A number of empirical parameters obtained from melt rheology can be related back to MWD parameters. The target of this study is to establish the reliability of such relations for polypropylene homo‐ and copolymers. It is found that correlations between polydispersity from rheological crossover modulus and polydispersity via chromatography are not always valid. Therefore, the range of applicability must be kept in mind when attempting predictions based on these correlations because rheological measurements are sensitive to molecular characteristics in ways different from chromatography. The use of a modified polydispersity index is shown to be more reliable.</jats:p>