Journal article
Chitosan conjugated with deoxycholic acid and gallic acid: A novel biopolymer-based additive antioxidant for polyethylene
Journal of applied polymer science, Vol.109(1), pp.38-46
07/05/2008
DOI: 10.1002/app.27953
Abstract
Chitosan, as a novel bioadditive antioxidant for commodity polymer, is proposed. Chitosan is successfully conjugated with deoxycholic acid and gallic acid (chitosan-DC-GA) via a simple reaction using the 1-ethyl-3-(3'-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide conjugating agent at room temperature in a heterogeneous system. Chitosan-DC-GA shows a deoxycholic acid (DC) and gallic acid (GA) content of about 40% each. Chitosan-DC-GA exhibits DPPH radical scavenging ability with EC50 1 mg mL(-1) based on the EPR technique evaluation. A model case study of chitosan-DC-GA with low-density polyethylene (LDPE) confirms improvement in compatibility, as seen from the sheet clarity, as well as the good dispersion of chitosan-DC-GA in LDPE matrices, as observed by scanning electron microscope. (C) 2008 Wiley Periodicals, Inc.
Details
- Title: Subtitle
- Chitosan conjugated with deoxycholic acid and gallic acid: A novel biopolymer-based additive antioxidant for polyethylene
- Creators
- Wanvimol Pasanphan - Chulalongkorn UniversityGarry R. Buettner - University of IowaSuwabun Chirachanchai - Chulalongkorn University
- Resource Type
- Journal article
- Publication Details
- Journal of applied polymer science, Vol.109(1), pp.38-46
- DOI
- 10.1002/app.27953
- ISSN
- 0021-8995
- eISSN
- 1097-4628
- Publisher
- Wiley
- Number of pages
- 9
- Language
- English
- Date published
- 07/05/2008
- Academic Unit
- Radiation Oncology
- Record Identifier
- 9984312983802771
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