The synthesis and characterization of poly(ethylene glycol) grafted on pullulan

The pullulans grafted with poly(ethylene glycol) with different degrees of substitution (DS: 0.02–0.2) are synthesized by reaction of pullulan and poly(ethylene glycol) terminated with carboxylic acid. The structure of the resulting modified pullulans is characterized with 1H‐NMR and FTIR spectra. T...

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Bibliographic Details
Published in:Journal of applied polymer science 2004-01, Vol.91 (2), p.1217-1221
Main Authors: Jiao, Yonghua, Fu, Yu, Jiang, Zhenhua
Format: Article
Language:English
Subjects:
Applied sciences
chemical modification
Exact sciences and technology
FTIR spectroscopy
NMR spectroscopy
Physicochemistry of polymers
poly(ethylene glycol)
Polymer industry, paints, wood
pullulan
Technology of polymers
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Summary:The pullulans grafted with poly(ethylene glycol) with different degrees of substitution (DS: 0.02–0.2) are synthesized by reaction of pullulan and poly(ethylene glycol) terminated with carboxylic acid. The structure of the resulting modified pullulans is characterized with 1H‐NMR and FTIR spectra. The DS of the products increase with the amount of the poly(ethylene glycol) added. The appearances of the products change considerably and the solubility in organic solvent is enhanced visibly. It was found that pullulan derivative is biodegradable. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 1217–1221, 2004
ISSN:0021-8995
1097-4628
DOI:10.1002/app.13238