本文選題：碳納米管陣列 + 水凝膠��； 參考：《蘇州大學(xué)》2015年碩士論文

【摘要】：碳納米管具有獨(dú)特的物理化學(xué)性質(zhì)以及許多優(yōu)異的性能,長(zhǎng)期以來一直是納米科學(xué)和材料領(lǐng)域的研究熱點(diǎn)。以往碳納米管的研究工作多集中于外部的修飾與復(fù)合,針對(duì)碳納米管內(nèi)部受限空間中物質(zhì)的特殊性質(zhì)的研究相對(duì)缺乏。這主要是由于傳統(tǒng)填充方法的局限,使得制備復(fù)雜的內(nèi)填充碳納米管復(fù)合材料存在很大困難。本文以預(yù)先制備的垂直取向碳納米管陣列/環(huán)氧樹脂復(fù)合膜為起始原料,設(shè)計(jì)并采用不同反應(yīng)物“對(duì)向擴(kuò)散”的方法,在直徑15 nm的碳納米管內(nèi)部原位聚合填充了溫敏型和p H敏感型水凝膠以及熒光水凝膠,通過高分辨透射電鏡(HRTEM)、顯微紅外光譜(Micro-FITR)以及熒光共聚焦顯微鏡(confocal laser scanning fluorescence microscope)等對(duì)填充復(fù)合材料進(jìn)行了表征。實(shí)驗(yàn)發(fā)現(xiàn),我們的方法大大提高了碳納米管內(nèi)部填充的效率及可控性,同時(shí)避免了水凝膠在碳管外部的包覆。更為重要的是,我們發(fā)現(xiàn)碳納米管內(nèi)部填充智能水凝膠不僅會(huì)增大碳納米管內(nèi)部的親水性,同時(shí)還會(huì)形成一種智能的離子傳輸通道,通過改變外部條件(溫度、p H),可以調(diào)控離子在通道內(nèi)部的傳輸速率。此外,碳納米管還具有保護(hù)其內(nèi)部熒光水凝膠不被淬滅的優(yōu)點(diǎn)。這些獨(dú)特的性質(zhì)使碳納米管內(nèi)填充智能水凝膠復(fù)合材料有望在智能離子通道、藥物控制釋放以及生物成像技術(shù)等領(lǐng)域得到應(yīng)用。
[Abstract]:Carbon nanotubes (CNTs), with their unique physical and chemical properties and many excellent properties, have been the focus of research in nanoscience and materials for a long time. In the past, the research work of carbon nanotubes mainly focused on the external modification and composite, but the study on the special properties of substances in the confined space of carbon nanotubes was relatively lacking. This is mainly due to the limitation of traditional filling methods, which makes it very difficult to fabricate intra-filled carbon nanotube composites. In this paper, the vertical aligned carbon nanotube array / epoxy composite film was used as the starting material to design and adopt the "opposite diffusion" method of different reactants. The in-situ polymerization of carbon nanotubes with a diameter of 15 nm was filled with thermal-sensitive and p-H-sensitive hydrogels and fluorescent hydrogels. The filled composites were characterized by high resolution transmission electron microscopy (TEM), micro-infrared spectroscopy (Micro-FITR) and confocal laser scanning fluorescence microscopes. It is found that our method can greatly improve the efficiency and controllability of filling carbon nanotubes and avoid the coating of hydrogels outside carbon nanotubes. More importantly, we found that filling carbon nanotubes with smart hydrogels not only increases the hydrophilicity of carbon nanotubes, but also forms an intelligent ion transport channel. The rate of ion transport within the channel can be regulated by changing the external conditions (temperature). In addition, carbon nanotubes also have the advantage of protecting their internal fluorescent hydrogels from quenching. Due to these unique properties, smart hydrogel composites filled in carbon nanotubes are expected to be used in intelligent ion channels, drug controlled release and bioimaging techniques.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TB383.1;TB33

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

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本文編號(hào)：1790133