Processing of (Co)poly(2-oxazoline)s by electrospinning and extrusion from melt and the postprocessing properties of the (co)polymers

Wojciech Walach , Natalia Oleszko-Torbus , Alicja Utrata-Wesolek , Marcelina Bochenek , Ewa Kijeńska-Gawrońska , Żaneta Górecka , Wojciech Święszkowski , Andrzej Dworak

Abstract

Poly(2-oxazoline) (POx) matrices in the form of non-woven fibrous mats and threedimensional moulds were obtained by electrospinning and fused deposition modelling (FDM), respectively. To obtain these materials, poly(2-isopropyl-2-oxazoline) (PiPrOx) and gradient copolymers of 2-isopropyl- with 2-n-propyl-2-oxazoline (P(iPrOx-nPrOx)), with relatively low molar masses and low dispersity values, were processed. The conditions for the electrospinning of POx were optimised for both water and the organic solvent. Also, the FDM conditions for the fabrication of POx multi-layer moulds of cylindrical or cubical shape were optimised. The properties of the POx after electrospinning and extrusion from melt were determined. The molar mass of all (co)poly(2-oxazoline)s did not change after electrospinning. Also, FDM did not influence the molar masses of the (co)polymers; however, the long processing of the material caused degradation and an increase in molar mass dispersity. The thermal properties changed significantly after processing of POx what was monitored by increase in enthalpy of exo- and endothermic peaks in differential scanning calorimetry (DSC) curve. The influence of the processing conditions on the structure and properties of the final material were evaluated having in a mind their potential application as scaffolds.

Author Wojciech Walach - [Center of Polymer and Carbon Materials of the Polish Academy of Sciences]
Wojciech Walach,,
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, Natalia Oleszko-Torbus - [Center of Polymer and Carbon Materials of the Polish Academy of Sciences]
Natalia Oleszko-Torbus,,
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, Alicja Utrata-Wesolek - [Center of Polymer and Carbon Materials of the Polish Academy of Sciences]
Alicja Utrata-Wesolek,,
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, Marcelina Bochenek - Center of Polymer and Carbon Materials of the Polish Academy of Sciences
Marcelina Bochenek,,
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, Ewa Kijeńska-Gawrońska (FMSE / DMD)
Ewa Kijeńska-Gawrońska,,
- Division of Materials Design
, Żaneta Górecka (FMSE / DMD)
Żaneta Górecka,,
- Division of Materials Design
, Wojciech Święszkowski (FMSE / DMD)
Wojciech Święszkowski,,
- Division of Materials Design
, Andrzej Dworak - [Center of Polymer and Carbon Materials of the Polish Academy of Sciences]
Andrzej Dworak,,
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Journal seriesPolymers, ISSN 2073-4360
Issue year2020
Vol12
No2
Pages1-16
Publication size in sheets0.75
Keywords in Englishpoly(2-isopropyl-2-oxazoline), poly(2-oxazoline)s; electrospinning; melt extrusion; nanofibres; polymer processing
ASJC Classification1600 General Chemistry; 2507 Polymers and Plastics
DOIDOI:10.3390/polym12020295
URL https://www.mdpi.com/2073-4360/12/2/295
Languageen angielski
File
polymers-12-00295.pdf 4.41 MB
Score (nominal)100
Score sourcejournalList
ScoreMinisterial score = 100.0, 16-09-2020, ArticleFromJournal
Publication indicators Scopus Citations = 1; GS Citations = 3.0; WoS Citations = 2; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.057; WoS Impact Factor: 2017 = 2.935 (2) - 2017=3.509 (5)
Citation count*3 (2020-08-31)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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