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Carbohydr Polym. 2018 Aug 15;194:260-266. doi: 10.1016/j.carbpol.2018.03.074. Epub 2018 Mar 23.

Effect of chitin nanofibrils on electrospinning of chitosan-based composite nanofibers.

Author information

1
Institute of Macromolecular Compounds, Russian Academy of Sciences, 31 Bolshoy pr. VO, 199004 Saint-Petersburg, Russia; Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya ul. 29, 195251 Saint-Petersburg, Russia. Electronic address: zair2@mail.ru.
2
Institute of Macromolecular Compounds, Russian Academy of Sciences, 31 Bolshoy pr. VO, 199004 Saint-Petersburg, Russia; Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya ul. 29, 195251 Saint-Petersburg, Russia.
3
Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya ul. 29, 195251 Saint-Petersburg, Russia.
4
Saint-Petersburg State University, 7-9, Universitetskaya nab., 199034 Saint-Petersburg Russia.
5
Applied Cosmetic Dermatology, Federico II University of Naples, Corso Umberto I, 40-80138, Napolei, Italy.

Abstract

Electrical conductivity, surface tension and viscosity of chitosan-based composite nanofibers are reported. 20 wt.% of chitin nanofibrils introduced into a chitosan solution leads to increase in viscosity of the mixture; the effect of shear rate becomes more pronounced. This phenomenon is caused by the formation of cluster structures involving filler particles, and by orientation of chitin nanofibrils under the action of shear stresses in electromagnetic field. Presence of chitin facilitated formation of nanofibers in electric field and led to significant decrease in the amount of defects.

KEYWORDS:

Chitin nanofibrils; Composite nanofibers; Electrospinning; Nanocomposite; Structure; Сhitin/chitosan

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