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《Journal of Anhui University of Technology and Science(Natural Science)》 2009-04
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Research of intrinsic viscosity deviation of chitosan analyzing by one-point method

LI Jian,BI Song-mei(Anhui Key Laboratory of Textile Materials,Anhui University of Technology and Science,Wuhu 241000,China)  
The intrinsic viscosity of chitosan with 98% degree of deacetylation has been determined by routine extrapolation method under conditions of 25 ℃,0.1 mol/LCH3COONa-0.2 mol/LCH3COOH as solvent.Three different one-point empirical equations were used to analyze the deviation of the intrinsic viscosity of chitosan,then a comparative analysis was made.The results show that the deviation between the intrinsic viscosity of chitosan with 98% degree of deacetylation calculated by the one-point empirical equation [η]=(ηsp+3ln ηr)/4C is the smallest of all,so this empirical equation is suitable for highly accurate determing of the intrinsic viscosity of chitosan with 98% degree of deacetylation.
【Fund】: 安徽省高校自然科学基金资助项目(2003kj036)
【CateGory Index】: O636.1
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