The moisture absorption and retention abilities of hyaluronan, chitosan, starch and their quaternary derivatives
Quaternary ammonium salt of hyaluronan (QHA), quaternary ammonium salt of starch (QS), and quaternary ammonium salt of chitosan (QCTS) were successfully prepared. Infrared spectroscopy (IR), 1H NMR and 13C NMR techniques were used to characterize the molecular structure of QHA. Results showed that QHA had better moisture absorption abilities than HA both at 43％ and 81％ RH. QS and QCTS had the same tendency. In addition, the three quaternized polysaccharides had better moisture retention abilities than their corresponding polysaccharides under three humidity conditions: 81％ RH, 43％ RH and dry condition. The -N+ (CH3)3 group played a very important role in moisture-absorption and retention ability of the quaternized polysaccharides. QCTS and QHA showed parallel or better Ra and Rh than that of HA, and had potential to use as moisture-retention ingredient, e. g., in cosmetics.
hydrophilic polymer moisture absorption moisture retention quaternized modification
Shaoli Yang Zhanyong Guo Qinzhao Xue Fengping Miao Yan Wang Song Qin
Yantai Institute of Coastal Zone Research for Sustainable Development,CAS Yantai,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）