P
Paweł Sajkiewicz
Researcher at Polish Academy of Sciences
Publications - 90
Citations - 2531
Paweł Sajkiewicz is an academic researcher from Polish Academy of Sciences. The author has contributed to research in topics: Electrospinning & Crystallization. The author has an hindex of 23, co-authored 77 publications receiving 1758 citations.
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Journal ArticleDOI
Phase transitions during stretching of poly(vinylidene fluoride)
TL;DR: In this article, the effect of temperature and deformation rate on the structure of drawn poly(vinylidene fluoride) samples was investigated by means of wide angle X-ray scattering.
Journal ArticleDOI
Enhanced Piezoelectricity of Electrospun Polyvinylidene Fluoride Fibers for Energy Harvesting.
Piotr K. Szewczyk,Arkadiusz Gradys,Sung Kyun Kim,Luana Persano,Mateusz M. Marzec,A. Kryshtal,Tommaso Busolo,Alessandra Toncelli,Alessandra Toncelli,Dario Pisignano,Dario Pisignano,Andrzej Bernasik,Sohini Kar-Narayan,Paweł Sajkiewicz,Urszula Stachewicz +14 more
TL;DR: This study showed that the electrospinning technique can be used as a single-step process for obtaining a vast spectrum of PVDF fibers exhibiting different physicochemical properties with β-phase crystallinity reaching up to 74%.
Journal ArticleDOI
Crystallization of polypropylene at various cooling rates
Arkadiusz Gradys,Paweł Sajkiewicz,Alexander A. Minakov,S.A. Adamovsky,Christoph Schick,Takeji Hashimoto,Kenji Saijo +6 more
TL;DR: In this paper, the authors investigated non-isothermal melt crystallization of isotactic polypropylene at cooling rates ranging from 1 up to 180,000 K/min using two types of differential scanning calorimeters-standard device Perkin-Elmer DSC Pyris-1 and ultra fast calorimeter.
Journal ArticleDOI
Crystallization of poly(vinylidene fluoride) during ultra-fast cooling
TL;DR: In this article, the authors investigated polyvinylidene fluoride (PVDF) in non-isothermal mode at ultra-high cooling rates ranging between 30-3000 k/s as well as at constant temperatures after quenching at 6000k/s.
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Biodegradation of bicomponent PCL/gelatin and PCL/collagen nanofibers electrospun from alternative solvent system
TL;DR: The analysis of Young modulus during biodegradation indicated complex mechanism of changes, including biopolymer mass loss, increase of PCL crystallinity and partial gelatin renaturation, as well as strongly emulsive nature of the solution in the former case.