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Modified cassava starch/poly(vinyl alcohol) blend films plasticized by glycerol: Structure and properties
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-01-07 , DOI: 10.1002/app.48848 Phetdaphat Boonsuk 1 , Apinya Sukolrat 2 , Kaewta Kaewtatip 1 , Sirinya Chantarak 1 , Antonios Kelarakis 3 , Chiraphon Chaibundit 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2020-01-07 , DOI: 10.1002/app.48848 Phetdaphat Boonsuk 1 , Apinya Sukolrat 2 , Kaewta Kaewtatip 1 , Sirinya Chantarak 1 , Antonios Kelarakis 3 , Chiraphon Chaibundit 1
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We report a systematic investigation on the structure–property relationships in glycerol‐plasticized poly(vinyl alcohol) (PVA)/cassava starch blends prepared via solution casting. In particular, PVA mixed with native, low‐oxidized, high‐oxidized, and pregelatinized cassava starches were characterized by means of SEM, XRD, FTIR, thermal analysis and mechanical testing and the immiscible systems were received. Burial tests over a period of several days suggested the preferential degradation of the starch and glycerol component (as indicated by the absence of FTIR signatures of those components) and the amorphous phase of PVA (as indicated by the enhanced crystallinity index of the degraded samples). The rheological properties of the blends seem to dictate their morphological characteristics that, in turn, have a profound impact on their mechanical properties. In that sense, the study highlights promising strategies for the development of a new family of polymeric materials that combine their biodegradable nature within superior mechanical properties. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48848.
中文翻译：
甘油增塑的木薯淀粉/聚乙烯醇共混改性膜的结构和性能
我们报告了对通过溶液流延制备的甘油增塑的聚乙烯醇（PVA）/木薯淀粉共混物的结构-性质关系的系统研究。特别地，通过SEM，XRD，FTIR，热分析和机械测试对掺有天然，低氧化，高氧化和预胶化木薯淀粉的PVA进行了表征，并获得了不混溶的体系。数天的埋葬测试表明，淀粉和甘油成分优先降解（如那些成分不具有FTIR标记所表明）和PVA无定形相（如降解样品的结晶度增强所表明） 。共混物的流变性能似乎决定了它们的形态特征，进而，对其机械性能产生深远影响。从这个意义上说，这项研究突出了开发新型聚合物材料家族的有前途的策略，该家族将其可生物降解的特性与卓越的机械性能相结合。©2020 Wiley Periodicals，Inc. J.Appl。Polym。科学2020，137，48848。
更新日期：2020-03-27
中文翻译：
甘油增塑的木薯淀粉/聚乙烯醇共混改性膜的结构和性能
我们报告了对通过溶液流延制备的甘油增塑的聚乙烯醇（PVA）/木薯淀粉共混物的结构-性质关系的系统研究。特别地，通过SEM，XRD，FTIR，热分析和机械测试对掺有天然，低氧化，高氧化和预胶化木薯淀粉的PVA进行了表征，并获得了不混溶的体系。数天的埋葬测试表明，淀粉和甘油成分优先降解（如那些成分不具有FTIR标记所表明）和PVA无定形相（如降解样品的结晶度增强所表明） 。共混物的流变性能似乎决定了它们的形态特征，进而，对其机械性能产生深远影响。从这个意义上说，这项研究突出了开发新型聚合物材料家族的有前途的策略，该家族将其可生物降解的特性与卓越的机械性能相结合。©2020 Wiley Periodicals，Inc. J.Appl。Polym。科学2020，137，48848。
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