Polymer Bulletin

, Volume 26, Issue 3, pp 313–317 | Cite as

Unsaturated polyester

4. Polyester from maleic anhydride and 1,5-pentanediol
  • Larez V. 
  • Cristobal J. 
  • Perdomo Mendoza Gilberto A. 
Article

Summary

The polyesterification reaction between maleic anhydride and 1,5-pentanediol, using p-toluenesulphonic acid as catalyst, was carried out. The material was characterized spectroscopically and its molecular weight measured. Besides isomerization of maleate to fumarate, some sort of intramolecular ring closure between polymer end groups may be occurring, since there is little agreement between molecular weight measurements by end group analysis and gel permeation chromatography, and very weak absorption is observed for hydroxyl group.

Keywords

Fumarate Maleic Anhydride Unsaturated Polyester Polymer Bulletin Molecular Weight Measurement 

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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • Larez V. 
    • 1
  • Cristobal J. 
    • 1
  • Perdomo Mendoza Gilberto A. 
    • 1
  1. 1.Facultad de Ciencias, Departamento de QuimicaUniversidad de Los AndesMeridaVenezuela

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