Modification of cellulose/chitin mix fibers with N-isopropylacrylamide and poly(N-isopropylacrylamide) under cold plasma conditions

Authors

  • Anamaria Sdrobiş,

    1. Romanian Academy, “P Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
    Search for more papers by this author
  • Ghiocel E Ioanid,

    1. Romanian Academy, “P Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
    Search for more papers by this author
  • Tatjana Stevanovic,

    1. Laval University, Centre de Recherche sur le Bois, Faculté de Foresterie, Sainte-Foy, Québec, G1V 0A6, Canada
    Search for more papers by this author
  • Cornelia Vasile

    Corresponding author
    1. Romanian Academy, “P Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
      Cornelia Vasile, Romanian Academy, “P Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania. E-mail: cvasile@icmpp.ro
    Search for more papers by this author

Cornelia Vasile, Romanian Academy, “P Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania. E-mail: cvasile@icmpp.ro

Abstract

A two-step grafting procedure was applied to cellulose/chitin (CC) mix fibers, namely: activation under the action of cold plasma discharges, followed by reaction with N-isopropylacrylamide (NIPAAm) and poly(N-isopropylacrylamide) (PNIPAAm) to obtain fibers with responsiveness to external stimuli. The graft samples were characterized using attenuated total reflection Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction, scanning electron microscopy coupled with energy-dispersive X-ray microanalysis and antimicrobial testing. All obtained results confirm the morphological and structural changes after plasma treatment which determine the modification of cellulose fiber properties. It was estimated from XPS data that the degrees of modification/grafting were about 23% for CC/NIPAAm and 13% for CC/PNIPAAm. Such treatment could be transferred to practical technologies, particularly in textile applications and special applications in the medical field. Copyright © 2012 Society of Chemical Industry

Ancillary