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Cellulose

, Volume 25, Issue 4, pp 2393–2403 | Cite as

PMMA/TEMPO-oxidized cellulose nanofiber nanocomposite with improved mechanical properties, high transparency and tunable birefringence

  • Tao Huang
  • Keiichi Kuboyama
  • Hayaka Fukuzumi
  • Toshiaki Ougizawa
Original Paper

Abstract

Recently, cellulose nanofibers (CNFs) have been developed as a very popular renewable and biodegradable nanofiller material for polymer nanocomposites. However, achieving good dispersion in a polymer matrix for effective reinforcement is still a challenge because CNFs are hydrophilic, whereas most polymers are hydrophobic. In this study, we report the poly(methyl methacrylate)/2,2,6,6-tetramethylpiperidyl-1-oxyl oxidized CNFs (PMMA/TOCN) nanocomposites, which show good dispersion, improved mechanical properties, excellent transparency, as well as controllable birefringence using a simple surface-modification procedure of TOCN with amine-functionalized poly(ethylene glycol). Studies conducted using transmission electron microscopy and fourier transform infrared spectroscopy showed that TOCNs were homogenously dispersed in the PMMA matrix without aggregation due to the successful surface modification of TOCN. Moreover, the nanocomposites were highly transparent and the transmittance in the visible region was as high as approximately 90%. In addition, we firstly discovered that the birefringence of the nanocomposite could be controlled by the amount of TOCN added, even achieving zero birefringence. More importantly, the tensile strength and Young’s modulus of PMMA were significantly improved with the addition of TOCN. Such well-dispersed TOCN-based nanocomposites with high transparency, controllable birefringence and enhanced mechanical properties exhibit great potential for the applications in the optical devices and in the engineering field.

Keywords

Nanocomposites PMMA TEMPO-oxidized cellulose nanofiber Transparency Birefringence 

Notes

Acknowledgments

The authors thank the Isogai lab at The University of Tokyo for providing the TOCN samples.

Supplementary material

10570_2018_1725_MOESM1_ESM.docx (103 kb)
Supplementary material 1 (DOCX 103 kb)

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Tao Huang
    • 1
  • Keiichi Kuboyama
    • 1
  • Hayaka Fukuzumi
    • 1
  • Toshiaki Ougizawa
    • 1
  1. 1.Department of Organic and Polymeric MaterialsTokyo Institute of TechnologyTokyoJapan

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