Physico-Chemical nanomaterials science 

Physical-chemical properties of nanocellulose synthesized from Miscanthus x giganteus 
Kovalchuk V.I.1, Alekseev O.M.1, Lazarenko M.M.1, Nedilko S.G.1, Rudnikov E.G.1, Sherbatskii V.P.1, Tkachov S.Yu.1, Barbash V.A.2, Yashchenko O.V.2
1 Taras Shevchenko National University of Kyiv, Volodymyrska Street 64/13, 01601, Kyiv, Ukraine. 
E-mail: sabkiev@gmail.com 
2 National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Prospect Peremogy, 37, Kyiv, Ukraine. 

In this work we presented the details of synthesis and results of study of the nanocellulose (NC) [1] prepared from Miscanthus x giganteus. In order to obtain nanocellulose at the first stage we isolated cellulose from Miscanthus by treatment in peracetic solution. At the second stage for obtaining NC, the cellulose was subjected to hydrolysis in sulfuric acid according our methodology [2]. 
Experimental results about structure, morphology and some other properties were taken. Non-destructive solid-state control methods were used for research: XRD; TGA; SE, TE and optical microscopy; luminescent, FTIR, reflection and absorption light spectroscopy. In particular, based on the viscosity, density and specific electrical conductivity of the NC dependence on demperature, the size of the NС clusters was estimated and the model was proposed for changing the NC water systems structure with temperature. 
Obtained data and the results of their analysis have pointed to the prospects for nanocellulose materials application in science and technology. 

1.	Mirjalili1 M., Zohoori S. Review for application of electrospinning and electrospun nanofibers technology in textile industry //J. Nanostruct. Chem. (2016) 6:207–213. 
2.	Barbash V.A., Yashchenko O.V., Opolsky V.O. Effect of hydrolysis conditions of organosolv pulp from kenaf fibers on the physico-chemical properties of the obtained nanocellulose // Theoretical and Experimental Chemistry. – 2018. – 54, N 3. – P. 193–198.