壳聚糖接枝丙烯酸制备高强吸水材料  

Study on the super absorbent prepared by chitosan grafting acrylic acid

作　　者：刘毅[1] 杨丹[1] 何兰珍[1] 

机构地区：[1]湛江海洋大学理学院,广东湛江524088

出　　处：《化学研究与应用》2005年第4期565-567,共3页Chemical Research and Application

基　　金：广东省教育厅自然科学研究项目资助(0151);广东省自然科学基金资助项目(033984)

摘　　要：The grafting reaction performed by dissolved chitosan in acrylic acid solution for preparing super absorbent could decrease solvent acetic acid and some processes.The super absorbent of chitosan grafted acrylic acid with absorbing distilled water more than 800 times,running water more than 500 times and 0.9%NaCl solution 130 times has been obtained.The infrared spectra and chemical analysis method were adopted to analyze the structure of chitosan grafted acrylic acid and the properties of absorbent material.The best process conditions are:the mole ratio of chitosan and acrylic acid is 1.00/1.40;the initiator concentration [Mn3+]=0.006mol·L-1;the grafting reaction temperature is 90℃ and the grafting reaction time is 1.5 h.The grafting reaction performed by dissolved chitosan in acrylic acid solution for preparing super absorbent could decrease solvent acetic acid and some processes. The super absorbent of chitosan grafted acrylic acid with absorbing distilled water more than 800 times, running water more than 500 times and 0. 9% NaC1 solution 130 times has been obtained. The infrared spectra and chemical analysis method were adopted to analyze the structure of chitosan grafted acrylic acid and the properties of absorbent material. The best process conditions are：the mole ratio of chitosan and acrylic acid is 1.00/1.40 ; the initiator concentration [Mn^3＋]=0.006mol L^-1 ;the grafting reaction temperature is 90℃ and the grafting reaction time is 1.5h.

关 键 词：甲壳素 壳聚糖 接枝改性 吸水树脂 

分 类 号：O636.9[理学—高分子化学]