Poly(ε-caprolactone)-based biocomposites reinforced with nanocrystalline cellulose grafted with poly(L-lactic acid)

International Conference Baltic Polymer Symposium 2018

Stepanova, Mariia^1 ; Averianov, Ilia^1 ; Gofman, Iosif^1 ; Solomakha, Olga^1 ; Nashchekina, Yuliya^2 ; Korzhikov-Vlakh, Viktor^1^3 ; Korzhikova-Vlakh, Evgenia^1

Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, St. Petersburg

199004, Russia^1

Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russia^2

Institute of Chemistry, Saint-Petersburg State University, St. Petersburg, Russia^3

关键词: Bio-composites;    Caprolactone;    FTIR spectroscopy;    Grafting from;    L-lactide;    Modified cellulose;    Nanocrystalline cellulose;    Poly L lactic acid;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/500/1/012021/pdf
DOI  :  10.1088/1757-899X/500/1/012021

来源: IOP

【 摘 要 】

The modification of nanocrystalline cellulose with poly(L-lactic acid) was carried out using the "grafting from" approach based on the ring-opening polymerization of L-lactide initiated with cellulose hydroxyls. The modification was proved by FTIR spectroscopy, thermogravimetric analysis and dynamic light scattering. Samples of native and modified cellulose were applied as fillers for poly(-caprolactone) films that were studied for their mechanical properties. A significant increase of Young's modulus was observed for composite material based on PCL containing nanocrystalline cellulose modified with poly(L-lactic acid).