Uyama Hiroshi, Kuwabara Mai, Tsujimoto Takashi, Nakano Mitsuru, Usuki Arimitsu, Kobayashi Shiro
Department of Materials Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
Macromol Biosci. 2004 Mar 15;4(3):354-60. doi: 10.1002/mabi.200300097.
This study deals with the preparation and properties of a new class of organic-inorganic hybrids from renewable resources. The hybrids were synthesized by an acid-catalyzed curing of epoxidized triglycerides in the presence of an organophilic montmorillonite (a modified clay). The mechanical properties were improved by the incorporation of clay in the oil-based polymer matrix. The reinforcement effect due to the addition of clay was confirmed by dynamic viscoelasticity analysis. The hybrids showed relatively high thermal stability. The co-curing of epoxidized soybean and linseed oils in the presence of clay produced hybrids with controlled mechanical and coating properties. The barrier property of the hybrid towards water vapor was superior to that of the oil polymer. The development of the present hybrids consisting of inexpensive renewable resources, triglyceride and clay is expected to contribute to global sustainability.
本研究涉及一类新型可再生资源有机-无机杂化材料的制备及其性能。这些杂化材料是通过在亲有机蒙脱土（一种改性粘土）存在下，对环氧化甘油三酯进行酸催化固化而合成的。通过在油基聚合物基体中加入粘土，机械性能得到了改善。动态粘弹性分析证实了由于添加粘土而产生的增强效果。这些杂化材料表现出相对较高的热稳定性。在粘土存在下，环氧化大豆油和亚麻籽油的共固化产生了具有可控机械性能和涂层性能的杂化材料。该杂化材料对水蒸气的阻隔性能优于油基聚合物。由廉价可再生资源甘油三酯和粘土组成的当前杂化材料的开发有望为全球可持续发展做出贡献。
