Synthesis and Characterization of Novel Polyurethanes Based on Tall Oil

  • Vladimir YAKUSHIN Latvian State Institute of Wood Chemistry
  • Uldis STIRNA Latvian State Institute of Wood Chemistry
  • Oskars BIKOVENS Latvian State Institute of Wood Chemistry
  • Maria MISANE Latvian State Institute of Wood Chemistry
  • Irina SEVASTYANOVA Latvian State Institute of Wood Chemistry
  • Dzintra VILSONE Latvian State Institute of Wood Chemistry
Keywords: poly(urethane amide), polyester urethane, mechanical properties, thermal stability

Abstract

Amide and ester type polyols were synthesized from different kinds of tall oil and two types of ethanolamine (diethanolamine and triethanolamine). Poly(urethane amides) and polyester urethanes based on the synthesized polyols were prepared. The influence of the chemical structure of the obtained polyurethanes on density, glass transition temperature, thermal stability, mechanical properties and adhesive strength was investigated. The effect of the content of rosin acids in original tall oil on the specified characteristics was estimated. It has been found that poly(urethane amides) have higher mechanical characteristics, but their thermal stability is lower than that of polyester urethanes. The chemical structure of the synthesized polyols and polyurethanes is qualitatively confirmed by IR-spectroscopy data.

DOI: http://dx.doi.org/10.5755/j01.ms.19.4.2666

Author Biographies

Vladimir YAKUSHIN, Latvian State Institute of Wood Chemistry
Polymer Laboratory, Leading Researcher
Uldis STIRNA, Latvian State Institute of Wood Chemistry
Polymer Laboratory, Leading Researcher
Oskars BIKOVENS, Latvian State Institute of Wood Chemistry
Lignin Laboratory, Researcher
Maria MISANE, Latvian State Institute of Wood Chemistry
Polymer Laboratory, Assistant
Irina SEVASTYANOVA, Latvian State Institute of Wood Chemistry
Polymer Laboratory, Assistant
Dzintra VILSONE, Latvian State Institute of Wood Chemistry
Polymer Laboratory, Researcher
Published
2013-12-11
Section
POLYMERS AND COMPOSITES, WOOD