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Influence of Multiwall Carbon Nanotubes Trapped at the Interface of an Immiscible Polymer Blend on Interfacial Tension

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Tao, Fangfang Auhl, Dietmar Baudouin, Anne-Christine Stadler, Florian J. Bailly, Christian [UCL]

The infl uence on interfacial energy of multiwall unfunctionalized carbon nanotubes (CNTs) trapped at the interface of an immiscible blend of polyamide 12 (PA12) and acrylate-ethylene (EA) copolymer is investigated with the help of the Palierne model combined with transmission electron microscopy (TEM) observations. It is found that the interfacial energy is unaffected by the interfacially trapped CNTs. The reduced droplet size observed in the presence of CNTs can neither be ascribed to a classical compatibilizer effect due to lower interfacial energy leading to enhanced breakup during processing, nor to the minute changes of the continuous phase viscosity induced by the CNTs. Another explanation based on steric hindrance is proposed. A network CNT layer that acts as a rigid shell is formed, which prevents coalescence of colliding droplets.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2013
Language Anglais
Journal information "Macromolecular Chemistry and Physics" - Vol. 214, no.3, p. 350-360 (2013)
Peer reviewed yes
Publisher WILEY-V C H VERLAG GMBH (Weinheim, Germany)
issn 1022-1352
Publication status Publié
Affiliation UCL - SST/IMCN/BSMA - Bio and soft matter
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Bibliographic reference Tao, Fangfang ; Auhl, Dietmar ; Baudouin, Anne-Christine ; Stadler, Florian J. ; Bailly, Christian. Influence of Multiwall Carbon Nanotubes Trapped at the Interface of an Immiscible Polymer Blend on Interfacial Tension. In: Macromolecular Chemistry and Physics, Vol. 214, no.3, p. 350-360 (2013)
Permanent URL http://hdl.handle.net/2078.1/127473