کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8336080 | 1540285 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of soluble p-aminobenzoyl chitosan ester by Schiff's base and antibacterial activity of the derivatives
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation of soluble p-aminobenzoyl chitosan ester by Schiff's base and antibacterial activity of the derivatives Preparation of soluble p-aminobenzoyl chitosan ester by Schiff's base and antibacterial activity of the derivatives](/preview/png/8336080.png)
چکیده انگلیسی
Schiff's base of chitosan (BCTS) was obtained by the reaction of chitosan (CTS) and benzaldehyde. Then BCTS reacted with acyl chloride which was synthesized by p-aminobenzoic acid and thionyl chloride to get N-benzoyl-O-aminobenzoyl chitosan ester (BABCTSE), removing the groups of amino protection of BABCTSE to get the final product (ABCTSE). The structures of the derivatives were characterized by FT-IR, 1H NMR, 13C NMR and elemental analysis. The elemental analysis results indicated that the degrees of substitution (DS) of the products were 16.8% and 40.4%. The synthesized compounds exhibited an excellent solubility in organic solvents. TG and DTG results showed that thermal stability of the derivatives was lower than that of chitosan. In addition, the existence of two different amido in the molecular structures contributed to forming more -NH3+ in the acid solution which could make the derivatives have a greater advantage in the field of bacteriostasis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 48, Issue 3, 1 April 2011, Pages 523-529
Journal: International Journal of Biological Macromolecules - Volume 48, Issue 3, 1 April 2011, Pages 523-529
نویسندگان
Wang Jiangtao, Wang Hedong,