A new homologous series of linear aliphatic unsaturated hydroxypolyesters a polyol soft segments for polyurethanes: Synthesis and characterization [electronic resource]

Pourdjavadi, A. (Ali) ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1002/(SICI)1097-4628(19980411)6
  3. Abstract:
  4. Synthesis and characterization of a new series of low molecular weight (MW = 500–3000) OH-terminated linear aliphatic unsaturated polyesters based on cis-2-butene-1,4-diol and oxalic to sebacic acid were investigated. Direct polycondensation and transesterification methods were used for the syntheses. The latter was recognized to be the preferable method due to its lower reaction temperature and time, lower diol/diacid ratio, absence of decarboxylation, and formation of a product with low polydispersity (Mw/Mn = 1.3–2.7). Elemental analysis, GPC, FTIR, 1H-NMR, DSC, and WAXD were used for the investigations. A segmented polyurethane based on poly (cis-2-butylene adipate) glycol was also synthesized and spectroscopically identified
  5. Keywords:
  6. Cis-2-butene-1,4-diol ; Synthesis ; Hydroxy-terminated polyester ; Transesterification ; Segmented polyurethane
  7. Source: Journal of Applied Polymer Science ; Volume 68, Issue 2, pages 173–183, 11 April 1998
  8. URL: http://onlinelibrary.wiley.com/doi/10.1002/%28SICI%291097-4628%2819980411%2968:2%3C173::AID-APP1%3E3.0.CO;2-N/abstract