Relations between Wallace plasticity and Mw for natural rubber

Bonfils Frédéric, Flori Albert, Sainte-Beuve Jérôme. 1999. Relations between Wallace plasticity and Mw for natural rubber. Journal of Applied Polymer Science, 74 (13) : 3078-3087.

Autre titre : Relations entre la plasticité Wallace et la masse moléculaire moyenne pour le caoutchouc naturel

Résumé : Wallace plasticity and the weight-average molar mass (Mw) were measured on natural rubber samples of different origins. A sigmoidal model describes the relations between Wallace plasticity and Mw (0.872 > r[puissance 2] > 0.992) for given families of samples. The families of samples analyzed differed through their clonal origin, collection method (cup lumps or latex), and type of processing (CV or non-CV). This study showed that two samples of natural rubber can be identical in terms of plasticity, but very different in terms of the average polyisoprene chain length or Mw.

Mots-clés Agrovoc : caoutchouc, latex, propriété rhéologique, poids moléculaire, provenance, clone, traitement, maturation, Viscosité

Mots-clés complémentaires : Caoutchouc naturel, Plasticité Wallace

Classification Agris : Q60 - Traitement des produits agricoles non alimentaires

Auteurs et affiliations

• Bonfils Frédéric, CIRAD-CP-HEVEA (FRA) ORCID: 0000-0001-7016-4770
• Flori Albert, CIRAD-CP-DIR (FRA) ORCID: 0000-0002-6962-5792
• Sainte-Beuve Jérôme, CIRAD-CP-HEVEA (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/392200/)

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