Université de Lyon, F-42023 Saint-Etienne, France.
Carbohydr Polym. 2013 Sep 12;97(2):665-75. doi: 10.1016/j.carbpol.2013.05.060. Epub 2013 May 30.
The purpose of the present work was to investigate the relationship between the glass transition temperature of the materials produced by the melting method and the water content, as well as the nature and concentration of the plasticizer used. Native starch was successfully treated with ionic liquid to obtain thermoplastic starch (TPS). Ionic liquids have shown a better plasticization, and low absorption of water compared to glycerol, which means a better interaction of starch with ionic liquids. The water binding properties of TPS were studied by commenting the water absorption for the plasticized starch at different % RH and with different ratios of plasticizers. An amount of 22.5 wt% AMIMCl is the maximum that can act as a plasticizer. Above this composition, an increase in the wt% water and wt% AMIMCl induces a phase separation. This value corresponds to a chemical interpretation, which corresponds to a ratio of 1:3 AMIMCl/anhydro-glucose. A schematic representation of the different binding between starch, plasticizer and water has been proposed.
本工作的目的是研究熔融法制备的材料的玻璃化转变温度与含水量以及所用增塑剂的性质和浓度之间的关系。天然淀粉经离子液体成功处理得到热塑性淀粉（TPS）。与甘油相比，离子液体显示出更好的增塑作用和低吸水性，这意味着淀粉与离子液体之间具有更好的相互作用。通过评论不同 RH 下和不同增塑剂比例下塑料化淀粉的吸水率，研究了 TPS 的水分结合特性。22.5wt% 的 AMIMCl 是作为增塑剂的最大用量。在此组成以上，wt%水和 wt%AMIMCl 的增加会引起相分离。这一数值对应于化学解释，即 AMIMCl/无水葡萄糖的比例为 1:3。提出了淀粉、增塑剂和水之间不同结合的示意图。
