A study on the structure of novel polyurethanes derived from γ-valerolactone-based diol precursors

Mochamad Chalid, Hans J. Heeres, Antonius A. Broekhuis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

As versatile biomass-based diol precursors, N,N'-1,2-ethanediylbis-(4-hydroxypentanamide) (1) and 4-hydroxy-N-(2-hydroxyethyl)-pentanamide (2) are potential monomers to synthesize novel polyurethanes through adding di-isocyanates. This study reported the structural analysis and molecular behavior of polyurethanes obtained from polymerization of the diol precursors with aliphatic and aromatic di-isocyanates (hexamethylene diisocyanate, HDI (3), and phenyl-diisocyanate, PDI (4)) in (N,N-dimethylacetamide (DMA) solvents with triethylamine (TEA) catalysts. 1H-NMR, 13C-NMR and Elemental Analysis confirmed structure of the polyurethanes built from both diols and di-isocyanates and FTIR indicated interaction among polyurethane molecules showed at lower wave numbers such as 2855-2976 cm-1 for hydrogenbonded -NH groups and 1621-1643 cm-1 for hydrogen-bonded -C=O groups. Furthermore a study on influence of the inter- and intra-molecular hydrogen bonding on the thermal and mechanical properties of the polyurethanes would be an interesting investigation for the next study.

Original languageEnglish
Title of host publicationAdvances in Materials, Processing and Manufacturing
Pages274-278
Number of pages5
DOIs
Publication statusPublished - 29 Oct 2013
Event13th International Conference on Quality in Research, QiR 2013 - Yogyakarta, Indonesia
Duration: 25 Jun 201328 Jun 2013

Publication series

NameAdvanced Materials Research
Volume789
ISSN (Print)1022-6680

Conference

Conference13th International Conference on Quality in Research, QiR 2013
CountryIndonesia
CityYogyakarta
Period25/06/1328/06/13

Keywords

  • Backbone structure
  • Di-isocyanates
  • Diols
  • Functional groups and hydrogen bonding

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