摘要
本文采用正交试验法,以高碘酸钠为氧化剂,α-纤维素为原料,进行了反应温度、纤维素与高碘酸钠质量比、不同pH值的溶剂等一系列条件的研究,合成了不同醛基含量的氧化纤维素,发现对醛基含量影响最大的因素是温度和高碘酸钠的浓度,其次是pH值和纤维素与高碘酸钠质量比的交互作用。研究发现以反应温度T=50℃,纤维素与高碘酸钠质量比=1 2,反应液pH=3,可得到醛基含量80 07%的氧化纤维素,符合试验设计目的。
The preparation of different aldehyde content oxycellulose was studied by orthogonal experiments in this paper. The influences of reaction temperature, ratio of cellulose to NaIO_4, pH value of solution were discussed when NaIO_4 was used as the oxidizing agent and α-cellulose as the starting material. The more important factors that affect the aldehyde content of oxycellulose were the temperature and the content of NaIO_4, the less important factors were pH value and the ratio of cellulose to NaIO_4. The best oxidation conditions were determined. When the reaction temperature is 50 ℃, the pH value is 3, the ratio of cellulose to NaIO_4 is 0.5, the oxycellulose with 80% aldehyde content can be obtained. It especially meets with the need of experiment design.
出处
《化学工业与工程》
CAS
2004年第6期395-397,共3页
Chemical Industry and Engineering
基金
天津市自然科学基金重点项目-新药专项(NO:03380211)
