本文以水作介质, Fenton’s 试剂(Fe~(2+)-H_2O_2)为引发剂,丙烯酸丁酯为接枝单体,研究了骨架淀粉的结构与界面形态,对丙烯酸丁酯与玉米淀粉按技共聚反虚的影响。发现骨架淀粉作为接枝共聚物的主干、母体,不仅对最终产物的性能有决定性意义,并对接枝反应的进行和接枝产物的结构与形态都具有直接的、关键性的影响。通常玉米淀粉呈微胞结构,其大分子聚集态结构由结晶区、取向区、无定形区三部分组成。反应活性为结晶区<取向区<无定形区。玉米淀粉经过氧化降解,除保持部分原有的活性—OH 以外,还引入了众多的活性—COOH,提高了接枝反应点数目.且众多的活性—CDOH 能将单体吸附到淀粉骨架附近,有利于接枝.另一方面,经过氧化降解,使淀粉分子量降低,粒度变细,比表面增大,活性端基充分暴露,因此反应活性得到提高。 In this paper, the structure and interface morphology of backbone starch were studied by using water as medium, Fenton’s reagent (Fe ~ (2 +) - H_2O_2) as initiator and butyl acrylate as grafting monomer. The effects of butyl acrylate and corn starch The impact of copolymerization counterfeit. It was found that the backbone of starch as the backbone and precursor of the graft copolymer was not only decisive for the properties of the final product, but also had a direct and critical effect on the grafting reaction and the structure and morphology of the grafted product. Usually corn starch was microstructure, the macromolecule aggregation structure from the crystallization zone, orientation zone, amorphous zone composed of three parts. The reactivity is crystallization zone