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Oxidizing Cellulose to 2,3-Dialdehyde Cellulose by Sodium Periodate(PDF)

Transactions of Tianjin University[ISSN:1006-4982/CN:12-1248/T]

Issue:
2005年04期
Page:
250-254
Publishing date:

Info

Title:
Oxidizing Cellulose to 2,3-Dialdehyde Cellulose by Sodium Periodate
Author(s):
MENG Shuxian FENG Yaqing~** LIANG Zupei FU Qiang ZHANG Enzhong
School of Chemical Engineering and Technology, Tianjin University,Tianjin 300072, China
Keywords:
DOI:

Abstract:
Study on oxidizing cellulose to 2,3-dialdehyde cellulose by sodium periodate (NaIO4) was carried out. The effects of reaction conditions such as pH of solution, temperature, oxidant concentration, oxidation time, the particle size of 2,3-dialdehyde cellulose and alkali treatment temperature on the dialdehyde concentration of cellulose were investigated in detail. The results show that the aldehyde group content was created while reaction temperature and alkali treatment temperature increased.The most principal factors affecting the aldehyde group content of 2,3-dialdehyde cellulose were found out and the best oxidation conditions were as follows: the pH was 2, the reaction temperature was 45 ℃, the mass ratio of cellulose to NaIO4 was 1/2, the reaction time was 4 h, the alkali treatment temperature was 70 ℃ and smaller particle size was 0.80 mm.

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Last Update: 2011-05-04