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Synthesis of lauryl grafted sodium alginate and optimization of the reaction conditions
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- Author(s): Yang, Jisheng ; He, Wen1
- Source:
International Journal of Biological Macromolecules. Mar2012, Vol. 50 Issue 2, p428-431. 4p.- Subject Terms:
- Source:
- Additional Information
- Abstract: Abstract: Lauryl grafted sodium alginate (SA-C12) was prepared by the reaction between sodium alginate and dodecanol with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC) as a coupling agent. The structure of SA-C12 was confirmed by FT-IR, 1H NMR, and thermoanalysis. Meantime, the degree of substitution (DS) of SA-C12 was determined by GC. The reaction conditions were studied systematically, which included reaction time and temperature, the molar ratio of hexuronic acid in alginate to dodecanol (N hexuronic/N dodecanol) and N hexuronic/N EDC, the mass of toluenesulfonic acid. By investigating the relationship between these conditions and DS, the optimal conditions with the maximum DS were obtained. [Copyright &y& Elsevier]
- Abstract: Copyright of International Journal of Biological Macromolecules is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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