丙烯酸-淀粉接枝共聚物的合成和性能  

Study of the Synthesis of Starch-Acrylic Acid Graft Copolymer and Property

作　　者：李绍莹[1] 全易[1] 区少芳[1] 孙玲[1] 

机构地区：[1]江苏工业学院化学化工学院,江苏常州213164

出　　处：《江苏工业学院学报》2008年第4期10-13,共4页Journal of Jiangsu Polytechnic University

摘　　要：以玉米淀粉和丙烯酸(AA)为原料合成了接枝共聚物。考察了淀粉丙烯酸质量比、引发剂量、反应温度、反应时间对反应和产物印花性能的影响。得到最佳反应条件为:m(淀粉)∶m(丙烯酸)=1∶4;m(过硫酸钾)∶m(淀粉)=0.25∶1;n(过硫酸钾)∶n(亚硫酸氢钠)=2∶1;反应温度85℃;反应时间为3 h。在此条件下,单体转化率97.68%,接枝效率为94.30%。印花试验表明本产物印花的给色量和色光均优于海藻酸钠,轮廓清晰度基本相同,而柔软性接近海藻酸钠。The graft copolymer was synthesized from maize and acrylic acid by aqueous solution polymerization. The effect of mass ratio of starch to acrylic acid, initiator dosage, reaction temperature and time on the graft copolymerization and printing properties was investigated. The optimal condition was that, corn starch＂ acrylic acid （mass ratio） = 1 ＂ 4; potassium persulfate： corn starch （mass ratio） =0.05 ：1; potassium persulfate： sodium bisulfate （mole ratio） =2 ：1 . reation temperature was 85℃ reation time was 3 h. On this condition, the monomer conversion was 97.68% and the grafting efficiency was 94.30%. Printing tests showed that the colour yield and shade of this copolymer were better than that of sodium alginate. Pattern sharpness was similar to sodium alginate. The softness was close to sodium alginate.

关 键 词：淀粉 丙烯酸 接枝共聚 印花 

分 类 号：TS194.4[轻工技术与工程—纺织化学与染整工程]