Startseite Preparation and characterization of non-isocyanate polyurethanes based on 2-hydroxy-6-naphthalenesulfonic acid as a monomer of the rigid phase
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Preparation and characterization of non-isocyanate polyurethanes based on 2-hydroxy-6-naphthalenesulfonic acid as a monomer of the rigid phase

  • Mohamed Bakar ORCID logo EMAIL logo , Anita Białkowska , Marcin Kostrzewa und Marta Lenartowicz
Veröffentlicht/Copyright: 12. März 2015
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Journal of Polymer Engineering
Aus der Zeitschrift Journal of Polymer Engineering Band 35 Heft 7

Abstract

The present study investigates the properties and structure of condensation non-isocyanate polyurethanes (NIPURs) prepared by reacting 2-hydroxy-6-naphthalenesulfonic acid (HNSA) with phenolsulfonic acid, urea and formaldehyde. Instrumental analyses confirmed a linear and segmented structure of the obtained condensation NIPURs. It was found that NIPUR films containing 20% HNSA and an equimolar ratio of rigid to flexible segments exhibited maximum values of tensile strength and tensile strain at break. All prepared samples showed a very high water resistance. The operating temperature of NIPUR samples based on HNSA was set between -33°C and +145°C. The first temperature was attributed to the glass transition of flexible segments, while the second one was associated with rigid segments melting. The higher the transition temperature, the higher the rigid segment content and the higher the HNSA content in the NIPUR sample.

Keywords: hard segments; non-isocyanate polyurethanes; properties; soft segments
Corresponding author: Mohamed Bakar, Department of Organic Materials Technology, Radom University of Technology and Humanities, Chrobrego 27, 26–600 Radom, Poland, e-mail: .

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Received: 2014-10-9
Accepted: 2015-1-17
Published Online: 2015-3-12
Published in Print: 2015-9-1

©2015 by De Gruyter

Artikel in diesem Heft

  1. Frontmatter
  2. Review
  3. Aided manufacturing techniques and applications in optics and manipulation for ionic polymer-metal composites as soft sensors and actuators
  4. Original articles
  5. Synthesis and properties of high temperature resistant and salt tolerant filtrate reducer N,N-dimethylacrylamide 2-acrylamido-2-methyl-1-propyl dimethyl diallyl ammonium chloride N-vinylpyrrolidone quadripolymer
  6. Preparation and characterization of non-isocyanate polyurethanes based on 2-hydroxy-6-naphthalenesulfonic acid as a monomer of the rigid phase
  7. Preparation of poly(aspartic acid) superabsorbent hydrogels by solvent-free processes
  8. Effect of carbon fiber surface modification on the flexural mechanical properties of carbon fiber reinforced polyetheretherketone biocomposites
  9. Analysis of the tensile properties of natural fiber and particulate reinforced polymer composites using a statistical approach
  10. Study on the deformation behavior of polyamide under the backward extrusion process
  11. High photoelectric PPV/PVA/Ag composite nanofibers by co-electrospinning
  12. Enhanced delivery of diclofenac diethylamine loaded Eudragit RL 100® transdermal system against inflammation
  13. Fabrication of hollow fiber microfiltration membrane from PVDF/DBP/DBS system via thermally induced phase separation process
https://doi.org/10.1515/polyeng-2014-0304
Schlagwörter für diesen Artikel
hard segments; non-isocyanate polyurethanes; properties; soft segments

Artikel in diesem Heft

  1. Frontmatter
  2. Review
  3. Aided manufacturing techniques and applications in optics and manipulation for ionic polymer-metal composites as soft sensors and actuators
  4. Original articles
  5. Synthesis and properties of high temperature resistant and salt tolerant filtrate reducer N,N-dimethylacrylamide 2-acrylamido-2-methyl-1-propyl dimethyl diallyl ammonium chloride N-vinylpyrrolidone quadripolymer
  6. Preparation and characterization of non-isocyanate polyurethanes based on 2-hydroxy-6-naphthalenesulfonic acid as a monomer of the rigid phase
  7. Preparation of poly(aspartic acid) superabsorbent hydrogels by solvent-free processes
  8. Effect of carbon fiber surface modification on the flexural mechanical properties of carbon fiber reinforced polyetheretherketone biocomposites
  9. Analysis of the tensile properties of natural fiber and particulate reinforced polymer composites using a statistical approach
  10. Study on the deformation behavior of polyamide under the backward extrusion process
  11. High photoelectric PPV/PVA/Ag composite nanofibers by co-electrospinning
  12. Enhanced delivery of diclofenac diethylamine loaded Eudragit RL 100® transdermal system against inflammation
  13. Fabrication of hollow fiber microfiltration membrane from PVDF/DBP/DBS system via thermally induced phase separation process
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