Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (7): 1417.

• Articles • Previous Articles     Next Articles

Studies on the Membrane Strength of Alginate/Chitosan Microcapsule Prepared by Emulsification/Internal Gelation Method

LIU Qun, XUE Wei-Ming, YU Wei-Ting, LIU Xiu-Dong, YAN Ruo-Yuan, LI Jin-Yun, MA Xiao-Jun   

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • Received:2001-04-29 Online:2002-07-24 Published:2002-07-24

Abstract: The alginate/chitosan microcapsule was prepared by emulsification/internal gelation method. It was found that the membrane strength was significantly affected by the molecular weight of chitosan, reaction time of these two polymers and the pHvalue of chitosan solution. When the molecular weight of chitosan was lower than 0.1 million, reaction time was higher than 15 min, pHof chitosan solution was about 6.0, then the most strongest membrane was obtained. At the same time the principle of the reaction of polyelectrolyte complexation was investigated.

Key words: Alginate, Chitosan, Microcapsule, Emulsification, Internal gelation

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