红外光谱法分析淀粉接枝聚丙烯酸酯共聚物的各级结构

Study on Analysis of Every Step Structure of Starch Graft Polyacrylate Copolymer by IR Spectra

研究玉米淀粉接枝聚丙烯酸酯共聚物的各级结构 ,主要探讨去除均聚物和玉米淀粉侧链的方法。发现以环己烷为溶剂 ,用索氏萃取法除去均聚物比用苯萃取法时间短、效果好 ;用 HCl酸解法除去淀粉侧链比用 HCl O4 氧化法简单实用。用红外光谱进一步验证了各级结构的官能团 。

Through the study on every step structure of corn starch graft polyacrylate copolymer,the methods of removing homopolymer and corn starch side chain are discussed.As solvent of removing homopolymer by salar extraction,cyclohexane is better than benzene.For removing corn starch side chain,hydrochloric acid (HCl) is simpler and safer than perchloric acid (HClO 4).The main functional groups of every step structure in the copolymer are confirmed by the IR spectrum.