Sintesis dan pencirian fizikokimia surfaktan polimer kationik daripada Kanji Dioscorea pyrifolia

Translated title of the contribution: Synthesis and physicochemical characterization of cationic polymeric surfactant from Dioscorea pyrifolia starch

Elmi Sharlina Md Suhaimi, Wan Yaacob Wan Ahmad, Mohamad Azwani Shah Mat Lazim

Research output: Contribution to journalArticle

Abstract

Cationic starch-based polymeric surfactant, 2-hydroxy-3-(N,N,N-trimethylammonium)propyloxy starch (S-ETAC) from Dioscorea pyrifolia tubers, was synthesized by etherification using 2,3-epoxytrimethylammonium chloride (ETAC) in the mass ratio of ETAC/starch (St) of 0.15:1, 0.25:1, 0.5:1, 1:1, 2:1 g/g and sodium hydroxide as a catalyst in aqueous medium. The degree of substitution (DS) and reaction efficiency (RE) were calculated using the percentage of nitrogen derived from the elemental analysis. The study found that the more the ETAC used, the higher the DS (0:11 to 0.76), but the RE decreased (69% to 35%). This S-ETAC was characterized by using the solubility and swelling power tests as well as attenuated total reflectance - Fourier transform infra-red (ATR - FTIR) spectroscopy, differential scanning calorimetry (DSC) and X-ray diffraction (XRD) to prove the reaction occurs at the starch structure.

Original languageMalay
Pages (from-to)1278-1285
Number of pages8
JournalMalaysian Journal of Analytical Sciences
Volume20
Issue number6
DOIs
Publication statusPublished - 2016

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Surface-Active Agents
Starch
Chlorides
Substitution reactions
Sodium Hydroxide
Swelling
Differential scanning calorimetry
Infrared spectroscopy
Fourier transforms
Nitrogen
Solubility
X ray diffraction
Catalysts
Chemical analysis

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Sintesis dan pencirian fizikokimia surfaktan polimer kationik daripada Kanji Dioscorea pyrifolia. / Suhaimi, Elmi Sharlina Md; Wan Ahmad, Wan Yaacob; Mat Lazim, Mohamad Azwani Shah.

In: Malaysian Journal of Analytical Sciences, Vol. 20, No. 6, 2016, p. 1278-1285.

Research output: Contribution to journalArticle

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abstract = "Cationic starch-based polymeric surfactant, 2-hydroxy-3-(N,N,N-trimethylammonium)propyloxy starch (S-ETAC) from Dioscorea pyrifolia tubers, was synthesized by etherification using 2,3-epoxytrimethylammonium chloride (ETAC) in the mass ratio of ETAC/starch (St) of 0.15:1, 0.25:1, 0.5:1, 1:1, 2:1 g/g and sodium hydroxide as a catalyst in aqueous medium. The degree of substitution (DS) and reaction efficiency (RE) were calculated using the percentage of nitrogen derived from the elemental analysis. The study found that the more the ETAC used, the higher the DS (0:11 to 0.76), but the RE decreased (69{\%} to 35{\%}). This S-ETAC was characterized by using the solubility and swelling power tests as well as attenuated total reflectance - Fourier transform infra-red (ATR - FTIR) spectroscopy, differential scanning calorimetry (DSC) and X-ray diffraction (XRD) to prove the reaction occurs at the starch structure.",
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