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Kafirin-derived films for sustainable development by amidation and esterification
Polymer Bulletin ( IF 3.2 ) Pub Date : 2019-07-11 , DOI: 10.1007/s00289-019-02876-y
Umesh R. Mahajan , Shashank T. Mhaske

Abstract The current study represents the modification of the side-chain functionality of kafirin to prepare amide and ester derivatives. To explore the effect of the pendant group on kafirin protein, the derivatives were subjected to film formation by compression molding. Mechanical and thermal behaviors of these films were investigated. FTIR and NMR confirmed the formation of amide and ester derivatives. Amide-derived films showed a reduction in the water absorption capacity as compared to the ester-derived films. The mechanical properties of amide-derived films were higher than that of unmodified kafirin films due to the high proportion of grafted pendant groups. Kafirin treated with benzoyl chloride system has the highest tensile modulus as compared to the other modification. These findings suggest that the kafirin has the potential to be used as a packaging material in various sectors. Graphic abstract

中文翻译:

通过酰胺化和酯化实现可持续发展的 Kafirin 衍生薄膜

摘要 当前的研究代表了对 Kafirin 侧链官能团的修饰以制备酰胺和酯衍生物。为了探索侧基对 kafirin 蛋白的影响,通过压缩成型对衍生物进行成膜。研究了这些薄膜的机械和热行为。FTIR 和 NMR 证实了酰胺和酯衍生物的形成。与酯衍生的薄膜相比,酰胺衍生的薄膜表现出吸水能力的降低。由于接枝侧基的比例高,酰胺衍生薄膜的机械性能高于未改性的卡非林薄膜。与其他改性相比,用苯甲酰氯系统处理的 Kafirin 具有最高的拉伸模量。这些发现表明,kafirin 有可能在各个领域用作包装材料。图形摘要
更新日期:2019-07-11
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