摘要
本文介绍用高碘酸氧化淀粉，合成双醛淀粉的情况，并对其氧化度的测定进行了某些探讨．
Synthesis for dialdehyde starch by oxidized cornstarches using periodate and determination for its dialdehyde unit has been studied. Best reaction temperaturn of synthesis for dialdehyde stach is 30℃. Availability of oxidizing agent periodate is 93% in lower materi-al proportion. Determination for dialdehyde unit of DAS by volumetric allalysis according to Caflrjizzaro reaction can be easily accomplished.This analytical approach has been calibrated by gravimetric analysis base upon n - nitrobenzophenone derivative of aldehyde group of DAS. The best yield of DAS and the higher dialdehyde unit of periodate oxidized cornstarches will be obtained,when reaction temperature is 30℃ and the material proportion is lower.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1996年第1期70-73,共4页
Natural Science Journal of Xiangtan University
关键词
双醛淀粉
高碘酸
氧化度
dialdehyde starch,cornstarch,periodate,Determination of dialdehyde unit
