首页|Study on the structure and physicochemical properties of fenugreek galactomannan modified via octenyl succinic anhydride
Study on the structure and physicochemical properties of fenugreek galactomannan modified via octenyl succinic anhydride
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NSTL
Elsevier
? 2022 Elsevier B。V。To improve the mechanical strength of borax-crosslinked fenugreek galactomannan hydrogels and broaden the application field of galactomannan-based hydrogels， fenugreek galactomannan (FG) was esterified via octenyl succinic anhydride (OSA)， and the parameters affecting the esterification reaction were systematically studied。 The optimum process for OSA-modified FG (OFG) was as follows: FG concentration 1。5 wt%， n (OSA): n (FG) = 2， n (4-dimethylamino-pyridine， DMAP): n (FG) = 4， and reaction time 12 h。 Under this condition， the degree of substitution (DS) was 0。31， and the product yield was 115。05 %。 Characterization of FT-IR， H1 NMR， and HPLC confirmed that the OSA group was successfully introduced into the FG skeleton。 The mechanical strength of borax crosslinked OFG hydrogel (OFGH) is 18 times higher than that of FG hydrogel。 OFGH shows excellent self-healing， injectable properties and electrical conductivity。 This will further expand the application of borax crosslinked galactomannan-based hydrogels in the fields of sensors， drug delivery， and wound dressing。
Fenugreek galactomannanOctenyl succinic anhydrideSelf-healing and injectable properties
Liu C.、Ning R.、Wang K.、Jiang J.、Lei F.、Li P.
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MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy Beijing Forestry University
GuangXi Key Laboratory of Chemistry and Engineering of Forest Products College of Chemistry and Chemical Engineering Guangxi University for Nationalities
NSTL
Elsevier
