Agritrop
Accueil

Size-characterization of natural and synthetic polyisoprenes by Taylor dispersion analysis

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.

Article de revue ; Article de recherche ; Article de revue à facteur d'impact
[img] 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/)

Voir la notice (accès réservé à Agritrop) Voir la notice (accès réservé à Agritrop)

[ Page générée et mise en cache le 2024-01-29 ]