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Polycaprolactone grafting of cellulose nanocrystals in ionic liquid [BMIM]Cl

  • Material Science
  • Published:
Wuhan University Journal of Natural Sciences

Abstract

A polycaprolactone-grafted cellulose nanocrystal (PCL-g-CN) was prepared in ionic liquid and characterized by Fourier transform infrared spectrum (FT-IR), X-ray diffraction (XRD), and transmission electron microscopy (TEM). A peak assigned to the carbonyl group appears at 1 730 cm−1 in the FT-IR of PCL-g-CN, which confirms that the grafting reaction is successfully completed. The morphologies of PCL-g-CNs still maintain rod-like structure according to the TEM images. XRD results show that the crystal type of the PCL-g-CNs changed from cellulose I to cellulose II. The reasons for crystal transition of CNs turn out to be combined effects of anion and cation in ionic liquid with CNs.

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Correspondence to Jin Huang.

Additional information

Foundation item: Supported by Supporting Project of New Century Excellent Talents of Ministry of Education of China (NCET-11-0686), Fundamental Research Funds for the Central Universities (Self-Determined and Innovative Research Funds of WUT 2012-Ia-006), ecoENERGY Innovation Initiative of Canada, Program of Energy Research and Development (PERD) of Canada, and State Key Laboratory of Pulp and Paper Engineering, South China University of Technology (201212)

Biography: HUANG Qing, female, Master, research direction: biomass nanocomposites.

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Huang, Q., Huang, J. & Chang, P.R. Polycaprolactone grafting of cellulose nanocrystals in ionic liquid [BMIM]Cl. Wuhan Univ. J. Nat. Sci. 19, 117–122 (2014). https://doi.org/10.1007/s11859-014-0987-3

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  • DOI: https://doi.org/10.1007/s11859-014-0987-3

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