Anjali Teotia
Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110 025, India.
Carbohydr Polym. 2012 Jan 4;87(1):457-460. doi: 10.1016/j.carbpol.2011.08.005. Epub 2011 Aug 11.
The periodate oxidation reaction of carboxymethyl cellulose involve the primary and secondary hydroxyl groups of the pyranose ring. The reaction is accompanied by the opening of the pyranose ring and resulting product is dialdehyde carboxymethyl cellulose along with some hydrated forms. In this process the glucosidic bond becomes weaker; the formation of carboxyl groups induces a depolymerization, thus reducing the polymerization degree and the physical and mechanical strength of the material. The reaction has been has been carried out at pH 3.5, temperature 45°C for 0.5-4h.
羧甲基纤维素的高碘酸盐氧化反应涉及吡喃糖环的伯羟基和仲羟基。该反应伴随着吡喃糖环的开环，生成的产物是二醛羧甲基纤维素以及一些水合形式。在此过程中，糖苷键变弱；羧基的形成引发解聚，从而降低了材料的聚合度以及物理和机械强度。该反应在pH值为3.5、温度为45°C的条件下进行了0.5 - 4小时。
