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首页> 外文期刊>Journal of Applied Polymer Science >Poly(vinyl alcohol) composite films with high percent elongation prepared from amylose-fatty ammonium salt inclusion complexes
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Poly(vinyl alcohol) composite films with high percent elongation prepared from amylose-fatty ammonium salt inclusion complexes

机译：由直链淀粉-脂肪铵盐包合物形成的高伸长率聚乙烯醇复合薄膜

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摘要

Amylose inclusion complexes prepared from cationic fatty ammonium salts and jet-cooked high amylose starch were combined with poly(vinyl alcohol) (PVOH) to form glycerol-plasticized films. For the octadecylammonium salt complexes, elongation was significantly higher than the PVOH control when the amount of complex incorporated was from 20% to 70%. For the dodecyl- and hexadecylammonium salt complexes, elongation was significantly higher than PVOH films for 20% to 40% incorporation of cationic complex. Tensile strength declined with increasing levels of amylose-ammonium salt complex, and surface hydrophobicity (contact angle) was significantly higher than PVOH films. Microscopy showed no phase separation or phase inversion, suggesting intimate mixing due to ionic interactions between cationic ammonium salt complexes and the hydroxyl groups of PVOH. The high elongations of these films and increased water contact angles are marketable advantages, along with the lower cost and increased biodegradability of the starch-based component. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44110.
机译：由阳离子脂肪铵盐和喷射蒸煮的高直链淀粉制备的直链淀粉包合物与聚乙烯醇（PVOH）混合形成甘油增塑膜。对于十八烷基铵盐配合物，当配合物的掺入量为20％至70％时，伸长率明显高于PVOH对照。对于十二烷基和十六烷基铵盐配合物，阳离子配合物的掺入量为20％至40％时，伸长率明显高于PVOH薄膜。拉伸强度随直链淀粉-铵盐配合物含量的增加而降低，表面疏水性（接触角）明显高于PVOH薄膜。显微镜显示没有相分离或相转化，这表明由于阳离子铵盐配合物与PVOH的羟基之间的离子相互作用而导致的紧密混合。这些膜的高伸长率和增加的水接触角是可销售的优点，同时淀粉基成分的成本更低且生物降解性更高。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，44110。

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