Synthesis And Characterization Of Novel 1,2,3-Triazole-Bridged Oxime Polyurethanes Obtained From An Isomannide Derivative Синтеза И Карактеризација На Нови 1,2,3-Триазол-Мостовни Оксим-Полиуретани Добиени Од Дериват На Изоманид

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Bayrak F., ORAL A., Ay K.

Macedonian Journal of Chemistry and Chemical Engineering, cilt.40, sa.1, ss.75-87, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 1
  • Basım Tarihi: 2021
  • Doi Numarası: 10.20450/mjcce.2021.2220
  • Dergi Adı: Macedonian Journal of Chemistry and Chemical Engineering
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Directory of Open Access Journals
  • Sayfa Sayıları: ss.75-87
  • Anahtar Kelimeler: poly(oxime-urethane), polyurethane, 1,6-hexamethylene diisocyanate, isomannide, azide, dioxime, 1,2,3-triazole
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

Polyurethanes (PUs) are synthesized by the reaction of diisocyanates and diols and are widely used in furniture foams, thermal insulation, coatings, and adhesives. In this work, a 1,2,3-triazole-bridged dioxime (compound 6) as a diol source was synthesized from isomannide via tosylation, azidation, and cyclization-addition and used in the syntheses of new PUs. A new carbohydrate-based linear P-1 was syn-thesized by the reaction of 6 and 1,6-hexamethylene diisocyanate (1,6-HMDI). Besides, three new linear PUs (P-2, P-3, and P-4) were synthesized by the reaction of 6, isomannide compound (used in different molar ratios), and 1,6-HMDI. The thermal properties of the new PUs were determined by thermogravime-try (TG), their molecular structures were characterized by FTIR, 1H- and 13C-NMR, and the molecular weights of some polymers were determined by GPC/SEC. Additionally, the surface characteristics of the synthesized PUs were examined via scanning electron microscopy (SEM).