TY  - EJOU
AU  - Menezes, Aparecido Junior de 
AU  - Longo, Elson 
AU  - Leite, Fábio Lima 
AU  - Dufresne, Alain 

TI  - Characterization of Cellulose Nanocrystals Grafted with  Organic Acid Chloride of Different Sizes
T2  - Journal of Renewable Materials

PY  - 2014
VL  - 2
IS  - 4
SN  - 2164-6341

AB  - In the work presented in this article surface chemical modifi cation was applied to ramie cellulose nanocrystals 
by grafting organic acid chlorides presenting different lengths of the aliphatic chain. The objective of this 
surface chemical treatment was to enhance the nonpolar nature of the grafted nanocrystals and improve their 
dispersibility in a nonpolar polymeric matrix. The occurrence of the chemical modifi cation was evaluated 
by Fourier transform infrared (FTIR) spectroscopy, the degree of crystallinity by X-ray diffraction, and 
the morphology by scanning electron microscopy with fi eld emission gun (FEG-SEM) and atomic force 
microscopy (AFM). The morphology and crystallinity provided by different experimental methods were 
carefully compared.
KW  - Cellulose nanocrystals
KW  -  surface chemical modifi cation
KW  -  AFM

DO  - 10.7569/JRM.2014.634121