Synthesis and Characterization of a Novel Degradable Aliphatic Polyester that Contains Monomeric Lactate Sequences

✍ Scribed by Congming Xiao; Yueying He; Hongmei Jin

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 109 KB
• Volume: 27
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200500734

✦ Synopsis

Abstract

Summary: A novel degradable aliphatic polyester that contains monomeric lactate sequences is synthesized via melt‐polycondensation of ethylene glycol lactate diol (EGLD) with succinic anhydride without the use of catalyst. The structure of the EGLD precursor and the polyester are verified with FT‐IR and ^1^H NMR spectra. Gel permeation chromatography reveals that the weight‐average molecular weight of the polyester is 5.5 × 10^4^ with a polydispersity index (PDI) of 1.7. Differential scanning calorimetry profiles reveal that the polyester is a semicrystalline polymer with a glass transition temperature of −12 °C and melting temperature of 101 °C. The weight loss percentage of the polyester after immersing for 208 d in active sludge is 2.7%, which suggests degradation has occurred.

The synthesis route of the polyester synthesized here (see inset for structure).

magnified imageThe synthesis route of the polyester synthesized here (see inset for structure).