Synthesis of plant oil derived polyols and their effects on the properties of prepared ethyl cellulose composite films
Synthesis of plant oil derived polyols and their effects on the properties of prepared ethyl cellulose composite films
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DOI：
10.1007/s10570-021-03811-z
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发表时间：
2021-03
期刊：
影响因子：
5.7
通讯作者：
Ya-xin Lin;Mei Li;Jianling Xia;Hai-yang Ding;Lina Xu;Xiaohua Yang;S. Li
中科院分区：
文献类型：
--
作者：
Ya-xin Lin;Mei Li;Jianling Xia;Hai-yang Ding;Lina Xu;Xiaohua Yang;S. Li
以蓖麻油酸和油酸为原料合成了不同羟基数的多元醇。这些植物油衍生的多元醇可作为增塑剂，通过超分子体系与乙基纤维素（EC）复合，制备乙基纤维素复合膜。对制备的乙基纤维素复合膜的形态结构、热稳定性和力学性能进行了详细的研究，以说明这些多元醇的增塑效率以及多元醇中羟基数目对EC复合膜性能的影响。随着多元醇的加入，EC复合膜的拉伸强度降低，而断裂伸长率增加。当多元醇中含有1-3个羟基时，EC复合膜的断裂伸长率可提高11-12倍。因此，具有1-3个羟基的植物油衍生的多元醇可用作EC膜的增塑剂。此外，还进行了分子动力学模拟，进一步探讨了多元醇中羟基数目对EC复合膜性能的影响。
AbstractPolyols with different number of hydroxyl groups were synthesized from ricinoleic acid and oleic acid. These plant oil derived polyols can be used as plasticizers and combined with ethyl cellulose (EC) through supramolecular system to prepare ethyl cellulose composite films. The morphology, thermal stability and mechanical properties of the prepared ethyl cellulose films were studied in detail to indicate the plasticizing efficiency of these polyols and the effect of the number of hydroxyl groups in polyols on EC composite film’s properties. With the addition of polyols, the tensile strength of EC composite films decreased, while the elongation at break increased. The elongation at break of EC composite films can be improved by 11–12 times when the polyols contain 1–3 hydroxyl groups. Thus, the plant oil derived polyols with 1–3 hydroxyl groups can be used as plasticizers for EC films. In addition, molecular dynamic simulations were performed to further probe the effects of the number of hydroxyl groups in polyols on EC composite film’s properties.Graphic abstract