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Volume 4 Nano Research & Applications
ISSN: 2471-9838
JOINT EVENT
October 04-05, 2018 Moscow, Russia
&
2nd Edition of International Conference on
26th International Conference on Advanced Nanotechnology
Materials Technology and Manufacturing Innovations
Advanced Nanotechnology 2018
& Materials-Manufacturing 2018
October 04-05, 2018 Page 22
Arkadii Arinstein
Technion–Israel Institute of Technology, Israel
Arkadii Arinstein, Nano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C5-020
Size-dependent behavior of electrospun polymer nanofibers
Some open problems concerning polymer materials of reduced sizes and dimensions are discussed. The lecture will
focus on the mechanical and thermodynamic properties of polymer nanofibers fabricated through electro-spinning
which have attracted much attention recently because of their unique features compared to the bulk. More specifically,
electrospun polymer nanofibers demonstrate so-called “size-dependent behavior” when thermo-mechanical properties
of material start to depend on fiber’s diameter, if their diame-ters are small enough. For example, abrupt increase
in polymer nanofiber elastic mod-ulus has been observed when diameters drop below a certain value. In addition,
temperature dependence of elastic modu-lus is highly influenced by fiber diameter. Also, a shift in the glass transition
and melting temperatures is observed. The physical aspects of the problem in question will be discussed. The key point
of the proposed speculations is based on con-finement concept: it is assumed that size-dependent behavior is related to
confine-ment of non-equilibrium supermolecular microstructure of electrospun polymer nanofibers which is formed
during their fabrication.
Recent Publications
1. A Arinstein, M Burman, O Gendel-man and E Zussman (2007) The ef-fect of supermolecular structure on
polymer nanofiber elasticity Nature Nanotechnology 2:59-62.
2. A Arinstein (2017) Electrospun Pol-ymer Nanofibers. Pan Stanford Pub-lishing ISBN-9789814745277.
Biography
Arkadii Arinstein has completed his PhD in Theoretical and Mathematical Physics at the Landau Institute for Theoretical Physics-Russian Academy of Sci-
ences in 1982. For many years, he worked at Semenov Institute for Chemical Physics of the Russian Academy of Sci-ences where he has completed his
DSc in Chemical Physics in 1995. Now, he is the Research-Professor at the Technion−Israel Institute of Technology. His research interests include “Statistical
physics of polymers and, non-linear phenomena and kinetic processes in disordered systems”. In the last 10 years, his studies are devoted to the physics
of electrospun polymer nanofibers.