Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (10): 1618.
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LI Gan-Zuo, SUI Wei-Ping, XU Gui-Ying, ZHENG Li-Qiang
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Abstract: The interaction between C14BE and NaCMC has been studied by using the surface tension method.In the neutral water solution, the effect of NaCMC on the surface activity of C14BE is weak, but with the addition of NaCl, two transition points appeared on the surface tension-concentration curve.This indicated that a water soluble C14BE/NaCMC complex was formed by hydrophobic effect. In the solution of pH=2,the existence of two transition points also indicated the formation of C14BE/NaCMC complex because of hydrogen-binding.It is the advantage for zwitterionic surfactant that the effect of electrolyte on it is weaker compared with that of its ionic surfactant.
Key words: Surface activity, Tetradecyl betaine(C14BE), Sodium carboxymethyl cellulose (NaCMC), Critical micelle concentration(cmc).
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LI Gan-Zuo, SUI Wei-Ping, XU Gui-Ying, ZHENG Li-Qiang. The Interaction Between C14BE and NaCMC(Ⅰ) ──The Effect of NaCMC on the Surface Activity of C14BE[J]. Chem. J. Chinese Universities, 1995, 16(10): 1618.
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