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首页> 外文期刊>Journal of Applied Polymer Science >Compatibilization of starch/poly(butylene adipate-co-terephthalate) blown films using itaconic acid and sodium hypophosphite
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Compatibilization of starch/poly(butylene adipate-co-terephthalate) blown films using itaconic acid and sodium hypophosphite

机译：使用衣康酸和次磷酸钠的淀粉/聚（丁烯己二酸丁二醇酯 - 对苯二甲酸酯）吹膜的相容化

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摘要

Itaconic acid (IA) has potential as a compatibilizing agent in polymeric blends due to its unique chemical characteristics. Sodium hypophosphite (SHP) has been studied as a catalyst in esterifying reactions using multicarboxylic acids. Starch/poly(butylene adipate-co-terephthalate) blown films containing IA, with and without SHP, were produced. The film containing IA presented higher tensile strength (8.166 MPa) and elongation (891.473%) than the control film (5.548 MPa and 487.637%, respectively). When SHP was added (sample IA-SHP), tensile strength increased even more (9.215 MPa); however, elongation (636.821%) was lower than in the IA film. This behavior was attributed to crosslinking between two starch itaconoate molecules intermediated by SHP. The increase in the compatibility between the polymeric phases justified the lower permeability to water vapor of the IA-SHP films and was responsible for the production of films with a more compact and homogeneous structure. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46629.
机译：由于其独特的化学特性，衣康酸（IA）具有作为聚合物共混物中的相容剂。已经研究了次磷酸钠（SHP）作为使用多羧酸的酯化反应中的催化剂。制备含有IA，含有IA的淀粉/聚（丁二酸酯 - 己二酸丁二醇酯）吹薄膜，有没有SHP。含IA膜呈现更高的拉伸强度（兆帕8.166）和伸长率（891.473％）比对照膜（5.548 MPa和487.637％）。加入SHP（样品IA-SHP）时，拉伸强度增加更多（9.215MPa）;然而，伸长率（636.821％）低于IA薄膜。这种行为归因于SHP中间淀粉型钛酸分子之间的交联。聚合物阶段之间的相容性的增加使IA-SHP薄膜的水蒸气的较低渗透性合理，并负责生产具有更紧凑和均匀的结构的薄膜。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46629。

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