本文選題：螺旋 + 酚醛樹脂　； 參考：《蘇州大學》2015年碩士論文

【摘要】：螺旋材料在對映體拆分、不對稱催化等領(lǐng)域具有潛在的應(yīng)用價值,引起了國內(nèi)外研究者的廣泛關(guān)注。隨著碳材料的發(fā)展,螺旋結(jié)構(gòu)的碳材料也逐漸走進人們視野,在近三十年的發(fā)展歷程中,科研工作者開發(fā)出了多種制備螺旋碳材料的方法,但是控制螺旋碳材料的單一手性仍然是個難題。超分子模板法是制備單手螺旋材料的重要方法,同時,結(jié)構(gòu)高度交聯(lián)的酚醛樹脂因為具有較高的熱穩(wěn)定性和較高產(chǎn)炭率,可作為碳前驅(qū)體制備各種結(jié)構(gòu)的碳材料。本文的工作是利用超分子模板法制備單手螺旋的酚醛樹脂,進一步碳化得到單手螺旋碳材料。具體包括兩部分內(nèi)容:一方面,采用手性陽離子型模板劑制備單手螺旋的2,4-二羥基苯甲酸-甲醛樹脂,通過研究樹脂的形成過程,提出了該樹脂可能的形成機理,2,4-二羥基苯甲酸通過分子間陰陽離子作用結(jié)合在單手螺旋的超分子自組裝體表面,與甲醛原位聚合,得到單手螺旋的2,4-二羥基苯甲酸-甲醛樹脂。另一方面,采用苯甘氨酸型模板劑制備了單手螺旋的3-氨基苯酚-甲醛樹脂,進一步碳化得到了對應(yīng)的碳質(zhì)納米管,利用圓二色譜(CD)研究了螺旋碳材料的光學活性,并通過理論計算推測CD信號來源于碳材料中芳環(huán)的手性堆積。研究發(fā)現(xiàn),改用苯丙氨酸型模板劑,可得到直的3-氨基苯酚-甲醛樹脂和碳質(zhì)納米管;與此同時用間苯二胺作為前驅(qū)體,則得到內(nèi)螺的間苯二胺-甲醛樹脂,結(jié)果表明該方法可以合成不同結(jié)構(gòu)和不同種類的材料。
[Abstract]:Helical materials have potential applications in enantiomeric resolution and asymmetric catalysis, and have attracted wide attention from researchers at home and abroad. With the development of carbon materials, spiral carbon materials have gradually entered the field of vision. In the past 30 years, researchers have developed a variety of methods to prepare spiral carbon materials. But controlling the single chirality of spiral carbon is still a problem. The supramolecular template method is an important method for the preparation of single-hand helical materials. Because of its high thermal stability and high carbon yield, the highly crosslinked phenolic resins can be used as carbon precursors to prepare carbon materials with various structures. In this paper, single-hand helical phenolic resin was prepared by supramolecular template method and further carbonized to obtain single-hand spiral carbon material. It includes two parts: on the one hand, the single-hand helical 2o 4-dihydroxybenzoic acid-formaldehyde resin was prepared by using chiral cationic template, and the formation process of the resin was studied. The possible formation mechanism of the resin was put forward. The resin was polymerized with formaldehyde on the surface of single-hand helical supramolecular self-assembly by the interaction of anion and anion between molecules, and the single-hand helical 2-dihydroxybenzoic acid-formaldehyde resin was obtained. On the other hand, the single-hand helical 3-aminophenol-formaldehyde resin was prepared with phenylglycine template, and the corresponding carbon nanotubes were obtained by further carbonization. The optical activity of the helical carbon materials was studied by circular dichroism chromatography (CD). The CD signal is deduced from the chiral stacking of aromatic rings in carbon materials by theoretical calculation. It was found that the straight 3-aminophenol-formaldehyde resin and carbon nanotubes could be obtained by using phenylalanine template, and at the same time, the m-phenylenediamine resin and formaldehyde resin of inner snail could be obtained by using resorcinenediamine as the precursor. The results show that this method can be used to synthesize materials with different structures and different kinds of materials.
【學位授予單位】：蘇州大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TQ127.11;TQ323.1

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