Cellulose

, Volume 20, Issue 4, pp 1711–1723 | Cite as

Highly transparent nancomposite films based on polybutylmethacrylate and functionalized cellulose nanocrystals

Original Research

Abstract

Efficient surface functionalization of cellulose nanocrystals (CNC) with hydroxyl butyl acrylate monomer (HBA) was carried on under mild condition using N,N′-carbonyldiimidazole as an activator. The grafting of the acrylic monomer was shown to bring about the high yield grafting of polymer chains on the functionalized CNC during in situ polymerization process. Surface functionalization of CNC with HBA and the polymer grafting on the modified CNC were confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Nanocomposite film prepared from in situ polybutylmethacrylate polymerization process using HBA functionalized nanocrystals exhibited high transparency degree here assigned to improved dispersion. DMA analysis proved that the best mechanical/rheological performance is obtained for HBA–CNC contents of 4 %.

Keywords

Cellulose nanowhiskers Polybutylmethacrylate Grafting Polymerization 

Notes

Acknowledgments

Authors would like to thanks NATO project (CBP.MD.CLG982316), the bilateral cooperation of Ministère de la Recherche Scientifique, Technologique et de Développement des Compétences (Tunisia) with GRICES (Portugal), and the FCT post-doctoral grant (AMF), SFRH/BPD/26239/2006, for financial support.

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Laboratoire des Sciences des Matériaux et EnvironnementUniversity of SfaxSfaxTunisia
  2. 2.Centro de Química-Física Molecular (CQFM) and Institute of Nanoscience and Nanotechnology, ISTTechnical University of LisbonLisbonPortugal

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