Polarization of soft materials through magnetic alignment of polymeric organogels under low-field conditions

Antoine Stopin, Alexandre Rossignon, Masoumeh Keshavarz, Yasuhiro Ishida, Peter C.M. Christianen, Davide Bonifazi

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Through application of an external magnetic field upon jellification of poly(3-hydroxybutyric acid-co-3-hydroxyvaleric) acid (PHBV) polymer in different solvents, an anisotropic organogel is obtained. This material presents two alignment steps in an external magnetic field, in the liquid phase and during the jellification, both phenomena measured by magnetic field induced linear birefringence. Remarkably, the organogel developed in this study presents a strong level of birefringence, 80% of its maximum, in an external magnetic field as low as 2 T resulting from the magnetic alignment of the fibers of the material. This anisotropic material shows changes of absorbance upon rotation of a polarizer switching from transparent to opaque. In addition, its suprastructure does not influence the luminescent properties of encapsulated chromophores, allowing the formation of colored anisotropic materials.

langue originaleAnglais
Pages (de - à)6985-6994
Nombre de pages10
journalChemistry of Materials
Volume28
Numéro de publication19
Les DOIs
Etat de la publicationPublié - 11 oct. 2016

Empreinte digitale Examiner les sujets de recherche de « Polarization of soft materials through magnetic alignment of polymeric organogels under low-field conditions ». Ensemble, ils forment une empreinte digitale unique.

  • Contient cette citation