Oxidizing Cellulose to 2,3-Dialdehyde Cellulose by Sodium Periodate  

作　　者：孟舒献 冯亚青 梁足培 付强 张恩仲 

机构地区：[1]School of Chemical Engineering and Technology, Tianjin University,Tianjin 300072, China

出　　处：《Transactions of Tianjin University》2005年第4期250-254,共5页天津大学学报（英文版）

基　　金：Supported by Natural Science Foundation of Tianjin (No. 03380211, 043610611).

摘　　要：Study on oxidizing cellulose to 2.3-dialdehyde cellulose by sodium periodate （NalO4） 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 ot 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 NalO4 was 1/2, the reaction time was 4 h, the alkali treatment temperature was 70℃ and smaller particle size was 0.80 mm.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.

关 键 词：CELLULOSE oxidation： 2.3-dialdehyde cellulose sodium periodate 

分 类 号：TQ352[化学工程]