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China Surfactant Detergent & Cosmetics ›› 2018, Vol. 48 ›› Issue (4): 196-200.doi: 10.13218/j.cnki.csdc.2018.04.003

• Development and application • Previous Articles     Next Articles

Synthesis and performance of (2-hydroxyl-3-dehydrofiroxy) propyl hydroxyethyl chitosan

WANG Ting, ZHANG Ting-ting, CAI Zhao-sheng, SANG Shu-min, HE Jian-ling, WANG Yi-ning   

  1. School of Chemistry and Chemical Engineering,Yancheng Institute of Technology,Yancheng,Jiangsu 224051,China
  • Received:2017-12-23 Published:2019-03-18

Abstract: A nonionic polymeric surfactant (2-hydroxyl-3-dehydrofiroxy) propyl hydroxyethyl chitosan (DAGE-g-HECTS) was prepared with the raw materials of dehydroabietyl glycidyl ether and N,O-hydroxyethyl chitosan.FT-IR、1H NMR and grafting degree (DG) of DAGE-g-HECTS was determined.The surface activity of DAGE-g-HECTS and its variation with the DG were investigated by using surface tension method.The emulsifying property of DAGE-g-HECTS was evaluated according to the stability time of emulsion composed of water and benzene with DAGE-g-HECTS as emulsifying agent.Results indicate that the target product is successfully prepared.The critical micelle concentration (cmc) of DAGE-g-HECTS in aqueous solution decreases from 1.080 6 to 0.247 2 g/L with the increase of DG from 17.78% to 44.31%,but the minimum surface tension ( γmin) of DAGE-g-HECTS can reach approximately 36.2 mN/m in aqueous solution.The stability time of emulsion composed of water and benzene with DAGE-g-HECTS as emulsifying agent extends with the increase of DG.When the DG of DAGE-g-HECTS is 23.16%,the stability time of emulsion is 348 s,which is longer than that with AEO-9 as emulsifying agent (327 s),and when the DG of DAGE-g-HECTS is 40.45%,the stability time of emulsion is 712 s,which is longer than that with Tween-60 as emulsifying agent (653 s).

Key words: nonionic surfactant, dehydroabietyl glycidyl ether, hydroxyethyl chitosan, surface activity, emulsi-fying property

CLC Number: 

  • TQ423.2