不同取代度改性纤维素交联剂对高吸水树脂结构与其性能的影响  

Influence of different substitution degree of modified cellulose crosslinking agent on the structure and property of superabsorbent

作　　者：艾买提江.萨伍提 买买提江.依米提 司马义.努尔拉 

机构地区：[1]新疆大学化学化工学院,乌鲁木齐830046

出　　处：《化工新型材料》2014年第11期186-189,共4页New Chemical Materials

基　　金：国家自然科学基金(21064009);新疆维吾尔自治区高校科研项目(XJEDU2012I06)

摘　　要：以取代度(DS)分别为0.031、0.058、0.093、0.124的马来酰化微晶棉秆纤维素(MMCC)为交联剂,以丙烯酸(AA)和丙烯酰胺(Am)为单体,2,2-二甲氧基-苯基甲酮(PI)为引发剂,采用紫外光聚合法制备了4种降解性马来酰化微晶纤维素接枝聚丙烯酸-丙烯酰胺高吸水树脂(MMCC-g-P(AA-co-Am))。用红外光谱对树脂进行表征。对这4种树脂的结构和吸水性能进行探讨。结果表明,按DS不同,所合成的树脂的结构和性能有所不同。当DS=0.058的MMCC做交联剂时,所合成树脂的吸液率最高,在蒸馏水和0.9%盐水中的水吸液率分别为1360g/g和140g/g。Four kinds of biodegradable superabsorbents （MMCC g P（AA co Am）） were prepared with acrylic acid （AA） and acrylamide （Am）,maleylated microcrystalline cotton cellulose （MMCC） as crosslinking agent with different sub stitution degrees （DS 0.031,0.058,0.093,0. 124） by ultraviolet （UV） photopolymerization,and 2,2-dimethoxyphenyl ketone （PI） as the initiator. The samples were further characterized by means of FTIR. The structure and water absorption performance of the resins were discussed. The results showed that the structures and properties of the resins were different with the change of DS. When DS=0. 058,the absorbance of the resin was highest,the deionized water absorbency was 1360 g/g,the saline water （0.9% NaCl） absorbency was 140 g/g.

关 键 词：改性棉秆纤维素 高吸水树脂 紫外光引发聚合 降解性 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]