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Citation: Zhang Liming, Li Zhuomei. Water-Soluble Amphoteric Cellulose Derivatives Ⅰ.Quaternary Ammonium Cationization of Carboxymethylcellulose[J]. Chinese Journal of Applied Chemistry, ;1998, 15(4): 5-8. shu

Water-Soluble Amphoteric Cellulose Derivatives Ⅰ.Quaternary Ammonium Cationization of Carboxymethylcellulose

Zhang Liming ,
Li Zhuomei

Institute Of Polymer Science, Zhongshan University, Guangzhou 510275

Received Date: 2 October 1997
Revised Date: 23 March 1998

A series of water-soluble amphoteric cellulose derivatives were prepared by quaternary ammonium cationization of carboxymethylcellulose (CMC) in aqueous sodium hydroxide or potassium hydroxide by using 3-chloro-2-hydroxypropyltrime chloride (CHPAC) as the cationic monomer in isopropanol-water mixture. The quaternarization reaction was studied with respect to the drgree of substitution of quaternary ammonium (DSQ) of canonized CMC and the reaction efficiency of quaternarization variables studied included the content of carboxymethyl groups in CMC, the type and amount of alkali, the amount of CHPAC and the solvent composition. The IR, X-ray diffraction and DSC spectra of pure CMC and the quaternized CMC with different DSQ were investigated and their be-haviour in aqueous solution was studied by viscosity measurements.
- water-soluble amphoteric cellulose derivative,
- quaternarization,
- carboxymethylcellulose,
- solution behaviour
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