Click grafting of seaweed polysaccharides onto PVC surfaces using an ionic liquid as solvent and catalyst.

نویسندگان

  • Sandra Bigot
  • Guy Louarn
  • Nasreddine Kébir
  • Fabrice Burel
چکیده

Seaweed antibacterial polysaccharides were grafted onto poly(vinylchloride) (PVC) surfaces using an original click chemistry pathway. PVC isothiocyanate surfaces (PVC-NCS) were first prepared by nucleophilic substitution of the chloride groups by isothiocyanate groups in DMSO/water medium. Then, unmodified Ulvan, Fucan, Laminarin or Zosterin was directly grafted onto the PVC-NCS surface using 1-ethyl-3-methyl imidazolium phosphate, an ionic liquid, as solvent and catalyst. To attest the grafting effectiveness, the new PVC surfaces were well characterized by AFM, XPS and contact angle measurements.

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عنوان ژورنال:
  • Carbohydrate polymers

دوره 98 2  شماره 

صفحات  -

تاریخ انتشار 2013