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七元瓜環(huán)橋聯(lián)丙烯酸聚合物的合成及其性質(zhì)研究

發(fā)布時(shí)間:2018-12-20 10:48
【摘要】:瓜環(huán)作為一類新型的主體大環(huán)化合物,與其相應(yīng)的化學(xué),即瓜環(huán)化學(xué)現(xiàn)在已成為大環(huán)化學(xué)及超分子化學(xué)研究領(lǐng)域中的一個(gè)重要部分。瓜環(huán)端口的親水性羰基氧原子和疏水性的空腔,以及較強(qiáng)的剛性結(jié)構(gòu),使得它在超分子化學(xué)領(lǐng)域占有重要的位置。在瓜環(huán)化學(xué)的研究中,瓜環(huán)基聚合物的合成及性質(zhì)已成為其重要研究方向之一。按作用方式可分為:1)建立在配位作用基礎(chǔ)上的瓜環(huán)基配位聚合物;2)建立在瓜環(huán)主客體相互作用基礎(chǔ)上的瓜環(huán)基超分子聚合物;3)建立在羥基瓜環(huán)的化學(xué)鍵基礎(chǔ)上的瓜環(huán)基聚合物。本文在已有工作的基礎(chǔ)上,開展建立在羥基瓜環(huán)基礎(chǔ)上的瓜環(huán)基聚合物研究,主要內(nèi)容包括:1)七元瓜環(huán)橋聯(lián)丙烯酸聚合物的合成及結(jié)構(gòu)表征;2)七元瓜環(huán)橋聯(lián)丙烯酸萘酚酯的合成、結(jié)構(gòu)表征;3)七元瓜環(huán)橋聯(lián)丙烯酸萘酚酯對染料的吸附性能研究;4)單羥基七元瓜環(huán)((HO)Q[7])的合成;5)(HO)Q[7]單羥基七元瓜環(huán)的表征:i)利用瓜環(huán)外壁作用,以[CdCl4]2 陰離子誘導(dǎo)方式,制備單羥基七元瓜環(huán)與堿土金屬離子(AE2+)的多孔配位聚合物;ii)對所得(HO)Q[7] AE2+ [CdCl4]2 基多孔配位聚合物對易揮發(fā)物質(zhì)吸附的研究。根據(jù)蘇海全課題組報(bào)道的一鍋法,選取丙烯酸作為聚合單體,過硫酸銨既是氧化瓜環(huán)反應(yīng)的氧化劑也是瓜環(huán)與丙烯酸聚合反應(yīng)的引發(fā)劑,合成一系列七元瓜環(huán)橋聯(lián)丙烯酸聚合物,產(chǎn)率約為30~80%。所得七元瓜環(huán)基橋聯(lián)丙烯酸聚合物通過一維核磁共振波譜技術(shù)、二維核磁共振波譜技術(shù)、熱分析、紅外光譜、掃描電鏡、透射電鏡及凝膠色譜等方法對其結(jié)構(gòu)進(jìn)行了表征。該方法拓寬了對空腔較大瓜環(huán)的實(shí)用研究,提高了瓜環(huán)的利用率,給研究者選用更多瓜環(huán)或單體材料提供了更多的可能性;谄咴檄h(huán)橋聯(lián)丙烯酸聚合物上的進(jìn)一步衍生化,通過與萘酚酯化反應(yīng),降低七元瓜環(huán)橋聯(lián)丙烯酸聚合物的水溶性。所得七元瓜環(huán)橋聯(lián)丙烯酸萘酚酯通過紅外光譜和固體碳譜進(jìn)行表征。通過紫外分光光度計(jì)檢測七元瓜環(huán)橋聯(lián)丙烯酸萘酚酯聚合物對染料的吸附情況,由與七元瓜環(huán)和瓜環(huán)與聚丙烯酸形成的雙重孔道協(xié)同作用的,該改性聚合物具有相較于單純的聚丙烯酸單位質(zhì)量吸附量有明顯增加,特別是中性紅,具有較高的選擇性。更為突出的性質(zhì)是用乙醇洗滌已吸附染料的七元瓜環(huán)橋聯(lián)丙烯酸萘酚酯就可以將染料釋放,材料可以重復(fù)利用。采用法國學(xué)者Bardelang和Ouari報(bào)道的單羥基瓜環(huán)氧化法,合成單羥基七元瓜環(huán);利用瓜環(huán)外壁正電性的結(jié)構(gòu)特征,(即瓜環(huán)的外壁作用),容易與[Cd Cl4]2 等陰離子相互作用,從而導(dǎo)致瓜環(huán),特別是七元瓜環(huán),容易與堿金屬(A+)、堿土金屬(AE2+)等離子發(fā)生配位作用,進(jìn)而形成配位聚合物的特點(diǎn),制備單羥基七元瓜環(huán)與AE2+的多孔配位聚合物;開展對所得(HO)Q[7] AE2+ [CdCl4]2 基多孔配位聚合物對易揮發(fā)物質(zhì)吸附的研究。
[Abstract]:As a new type of main macrocyclic compounds, melons have become an important part in the field of macrocyclic chemistry and supramolecular chemistry. Hydrophilic carbonyl oxygen atoms hydrophobic cavities and strong rigid structures at the end of melons make them play an important role in the field of supramolecular chemistry. In the research of melons ring chemistry, the synthesis and properties of melon-based polymers have become one of the important research directions. It can be divided into: 1) coordination polymer based on coordination, 2) supramolecular polymer based on host and guest interaction of melon ring; 3) Cucurbit-based polymers based on the chemical bonds of hydroxy melons. In this paper, based on the existing work, the study of the hydroxy ring based melon ring polymer is carried out. The main contents are as follows: 1) the synthesis and structure characterization of the seven-member melon ring bridged acrylic acid polymer; 2) Synthesis and structure characterization of naphthol acrylate, 3) adsorption property of naphthol acrylate, 4) synthesis of monohydroxyl heptachlorocyclic naphthol acrylate, 4) synthesis of mono hydroxyl heptachlorocyclic naphthol acrylate [7]. Characterization of) (HO) Q [7] mono-hydroxyl hepta-ring: i) porous coordination polymer with alkali earth metal ions (AE2) was prepared by [CdCl4] _ 2 anion induced by the outer wall of: i). Ii) study on the adsorption of volatile compounds by (HO) Q [7] AE2 [CdCl4] 2 based porous coordination polymers. According to the one-pot method reported by Su Hai, the acrylic acid was chosen as the polymerization monomer. Ammonium persulfate was not only the oxidant of the epoxidation of melon ring, but also the initiator of the polymerization between the melon ring and acrylic acid. A series of seven-member melons-bridged acrylic polymers were synthesized and the yield was about 30. 80%. The structure of the quaternary melon-bridged acrylic polymer was characterized by 1D NMR, 2D NMR, thermal analysis, IR, SEM, TEM and gel chromatography. This method broadens the practical research on the large hollow melon rings, improves the utilization rate of the rings, and provides more possibilities for the researchers to select more melons or monomers. Based on the further derivation of the acrylic polymer bridged by the seven-member melon ring, the water solubility of the acrylic polymer bridged with the seven-member melon ring was reduced by esterification with naphthol. Naphthol acrylate was characterized by IR and solid carbon spectra. Ultraviolet spectrophotometer was used to detect the adsorption of naphthol acrylate polymer on the bridge of seven-member melon ring. The adsorption of the dye was synergistic with the double channels formed by the ring and polyacrylic acid. The modified polymer has higher selectivity than that of pure polyacrylic acid, especially neutral red. The more prominent property is that naphthol acrylate can be released by washing the adsorbed dye with ethanol, and the material can be reused. Mono-hydroxyl seven-member melons were synthesized by the method of epoxidation of mono-hydroxyl melons reported by French scholars Bardelang and Ouari. It is easy to interact with [Cd Cl4] 2 + anions by using the positive structural characteristics of outer wall of melon ring (that is, the outer wall of melon ring), which leads to the ring, especially the seven-member ring, easily interacting with alkali metal (A),. The coordination of alkaline earth metal (AE2) plasma and the formation of coordination polymers were investigated. The porous coordination polymers of mono-hydroxyl seven-member melon ring and AE2 were prepared. The adsorption of volatile substances by (HO) Q [7] AE2 [CdCl4] 2 based porous coordination polymers was studied.
【學(xué)位授予單位】:貴州大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2016
【分類號】:O634;O641.3

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