講座報(bào)告主題:Alkyl–π功能分子液體向凝膠的轉(zhuǎn)化
專家姓名:Takashi Nakanishi
日期:2024-05-21 時(shí)間:10:30
地點(diǎn):材料樓304會(huì)議室
主辦單位:材料科學(xué)與工程學(xué)院
主講簡(jiǎn)介:In 2000, Dr. T. Nakanishi (TN) was awarded a Ph.D. from Nagasaki University under the supervision of Prof. Naotoshi Nakashima. TN was awarded a JSPS Postdoctoral Fellowship and worked at Houston University with Prof. Karl M. Kadish and Oxford University with Prof. Harry L. Anderson. My research career started at the National Institute for Materials Science, Japan, in 2004, and since 2016, TN has been a group leader at MANA, NIMS. From 2007 to 2010, TN was also a group leader at the Max Planck Institute of Colloids and Interfaces. TN is currently a visiting professor at Hokkaido University. TN is one of the Associate Editors of “Responsive Materials.”研究專長(zhǎng):Development of optical and electronic-active soft materials.
主講內(nèi)容簡(jiǎn)介:開(kāi)發(fā)具有光學(xué)和電子活性的軟材料引起了對(duì)軟(生物)電子應(yīng)用的關(guān)注。通過(guò)用笨重但柔軟的支鏈烷基鏈修飾π-共軛部分,在室溫下獲得無(wú)溶劑的分子液體是一種有前途的功能性軟材料,。調(diào)節(jié)彈性模量(G′)對(duì)于在可變形設(shè)備中使用烷基–π液體至關(guān)重要,。然而,通過(guò)烷基–π液體的分子設(shè)計(jì)實(shí)現(xiàn)的G′范圍調(diào)控有限,。提出了一種通過(guò)凝膠化控制烷基–π液體的G′的方法。添加1 wt%的低分子量凝膠劑形成烷基–π功能分子凝膠(FMG),并在保持光學(xué)特性的同時(shí),,將烷基–π液體的G′提高了多達(dá)七個(gè)數(shù)量級(jí)。由于烷基–π FMG在凝膠介質(zhì)中具有功能性π基團(tuán),,這種新型凝膠的π基團(tuán)含量高達(dá)59 wt%,,而傳統(tǒng)π-凝膠僅為幾wt%。更重要的是,,凝膠狀態(tài)的電荷保持能力比液體狀態(tài)高23%,,在可變形的機(jī)電發(fā)電機(jī)(MEG)-駐極體設(shè)備中表現(xiàn)更佳。這項(xiàng)研究中使用的策略成為開(kāi)發(fā)下一代光學(xué)和電子活性FMG材料的新方法,。
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