Biron Jean-Philippe, Bonfils Frédéric, Cipelletti Luca, Cottet Hervé. 2018. Size-characterization of natural and synthetic polyisoprenes by Taylor dispersion analysis. Polymer Testing, 66 : 244-250.
![[img]](http://agritrop.cirad.fr/style/images/fileicons/text.png) |
Version publiée
- Anglais
Accès réservé aux personnels Cirad Utilisation soumise à autorisation de l'auteur ou du Cirad. 1-s2.0-S0142941817316112-main.pdf Télécharger (724kB) | Demander une copie |
Quartile : Q1, Sujet : MATERIALS SCIENCE, CHARACTERIZATION & TESTING / Quartile : Q1, Sujet : POLYMER SCIENCE
Résumé : Non-aqueous Taylor dispersion analysis (TDA) was used for the size-characterization of natural and synthetic polyisoprenes (4 × 103–2 × 106 g/mol molar mass). Not only the weight-average hydrodynamic radius (Rh), but also the probability distribution of the hydrodynamic radius, were both derived from the Taylorgrams by a simple integration of the elution profile and by a more sophisticated constrained regularized linear inversion of the Taylorgram, respectively. Results in terms of size characterization (hydrodynamic radii between 2 and 100 nm) were compared to size exclusion chromatography coupled to a refractive index-based mass detector. Multimodal size distributions were resolved by TDA for industrial and natural polyisoprenes, with the advantage over the chromatographic technique that, in TDA, there is no abnormal elution of microaggregates (hydrodynamic radii ∼ 40–50 nm). Considering the importance and the difficulty of characterizing polyisoprene microaggregates, TDA appears as a promising and simple technique for the characterization of synthetic and natural rubber.
Mots-clés Agrovoc : caoutchouc, polymère, isoprène, taille, état dispersé, chromatographie, technique analytique, Hevea brasiliensis
Classification Agris : U30 - Méthodes de recherche
000 - Autres thèmes
Q60 - Traitement des produits agricoles non alimentaires
Champ stratégique Cirad : Axe 2 (2014-2018) - Valorisation de la biomasse
Auteurs et affiliations
- Biron Jean-Philippe, Université de Montpellier (FRA)
-
Bonfils Frédéric, CIRAD-PERSYST-UMR IATE (FRA)
ORCID: 0000-0001-7016-4770
- Cipelletti Luca, Université de Montpellier (FRA)
- Cottet Hervé, Université de Montpellier (FRA) - auteur correspondant
Source : Cirad-Agritrop (https://agritrop.cirad.fr/587087/)
[ Page générée et mise en cache le 2024-01-29 ]
