首页 | 本学科首页   官方微博 | 高级检索  
     

淀粉-丙烯酸接枝共聚物的合成及产物结构表征
引用本文:陈展云,彭惠梅,蒋林斌,王东耀,刘汝锋,尚小琴.淀粉-丙烯酸接枝共聚物的合成及产物结构表征[J].高分子材料科学与工程,2009(3):21-24.
作者姓名:陈展云  彭惠梅  蒋林斌  王东耀  刘汝锋  尚小琴
作者单位:广西大学化学化工学院;广州大学化学化工学院;
基金项目:国家自然科学基金资助项目(20666001);;广东省自然科学基金资助项目(5001880);;江西省科技攻关项目(20051C0600500)
摘    要:以木薯淀粉为主要原料,采用反相乳液聚合方法合成淀粉-丙烯酸接枝共聚物,通过正交设计对主要影响因素及反应条件进行研究,并用红外光谱、X射线衍射、热重分析等方法表征产物结构。实验结果显示,最佳合成工艺条件为丙烯酸:淀粉=3.5,丙烯酸中和度=83.3%,过硫酸钾和N,N-亚甲基双丙烯酰胺分别为淀粉用量的3.0%和0.3%,反应温度70℃,反应时间3 h,产物吸水率>800g/g。聚合过程中淀粉与丙烯酸发生了接枝共聚反应,并且接枝反应破坏了淀粉颗粒结晶结构,接枝产物趋于无定型结构。

关 键 词:反相乳液  接枝共聚  木薯淀粉  丙烯酸  结构表征

Synthesis and Characterization of Graft Copolymers of Acrylic Acid onto Starch
CHEN Zhan-yun,PENG Hui-mei,JIANG Lin-bin,WANG Dongyao,LIU Ru-feng,SHANG Xiao-qin.Synthesis and Characterization of Graft Copolymers of Acrylic Acid onto Starch[J].Polymer Materials Science & Engineering,2009(3):21-24.
Authors:CHEN Zhan-yun  PENG Hui-mei  JIANG Lin-bin  WANG Dongyao  LIU Ru-feng  SHANG Xiao-qin
Affiliation:1.School of Chemistry and Chemical Engineering of Guangxi University;Nanning 530004;China;2.School of Chemistry and Chemical Engineering of Guangzhou University;Guangzhou 510006;China
Abstract:A graft copolymer was synthesized in water-oil inverse emulsion by copolymerization of acrylic acid(AA) onto cassava starch,with N,N-methylene diacrylamide as cosslinking agent,potassium persulfate as an initiator.The orthogonal design of the important factors was utilized in this technique.The grafting copolymerization was analysed by FT-IR,XRD and TG.The optimum reaction conditions are 3.5 mass ratio of acrylic acid to starch,0.30% mass ratio of crosslinking agent to starch,3.0% mass ratio of initiator to...
Keywords:inverse emulsion  graft copolymerization  cassava starch  acrylic acid  characterization  
本文献已被 CNKI 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号