Hydrophobic thermoplastic starch supramolecularly-induced by a functional sucrose based ionic liquid crystal
Hydrophobic thermoplastic starch supramolecularly-induced by a functional sucrose based ionic liquid crystal
复制标题
功能性蔗糖基离子液晶超分子诱导疏水性热塑性淀粉
DOI：
10.1016/j.carbpol.2020.117363
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发表时间：
2021
影响因子：
11.2
通讯作者：
Wang JL
中科院分区：
文献类型：
--
作者：
Yang YB;Zhou H;Xiao Y;Feng L;Yang LJ;Bao LX;Wang JL
由于加工过程中不可避免地会使用甘油等典型的亲水性增塑剂，因此获得具有优异机械性能的疏水性热塑性淀粉仍然是一个很大的挑战。在此，我们报告了一种新的疏水性热塑性淀粉使用超分子诱导热塑化技术。为了实现这一目标，首先合成了一种含有大量氯原子的功能性蔗糖基离子液晶（ILC），然后将所得ILC分子用作超分子诱导剂来热处理玉米淀粉颗粒。研究了不同ILC含量的超分子诱导热塑性淀粉（STPS）的热塑性和疏水性。超分子诱导的热增塑机理进行了研究，以及使用分子模拟。所制备的STPS的最大拉伸强度为8.4 MPa，水接触角约为117°，在绿色和可持续包装材料方面具有巨大的应用潜力。
It is still a big challenge to obtain hydrophobic thermoplastic starch with outstanding mechanical performance due to the inevitable usage of typical hydrophilic plasticizers like glycerol during processing. Herein, we report a novel hydrophobic thermoplastic starch using a supramolecularly induced thermoplasticization technique. To achieve this aim, a functional sucrose-based ionic liquid crystal (ILC) including numerous chloride atoms has been firstly synthesized, and the obtained ILC molecules are then used as supramolecular inducers to thermoplasticize corn starch granules. Thermoplasticity and hydrophobicity of the prepared supramolecularly induced thermoplastic starch (STPS) with different ILC contents have been extensively investigated. Mechanism of the supramolecularly induced thermoplasticization has been investigated using molecular simulation as well. The prepared STPS with the maximum tensile strength of 8.4 MPa and water contact angle of about 117° show large potential applications in green and sustainable packaging materials.