光致变色萘并吡喃的合成与表征

发布时间：2018-02-15 05:59

  本文关键词： 光致变色 萘并吡喃 合成 含氟材料 涂覆　出处：《天津科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：光致变色材料具有良好的应用前景,广泛应用于信息储存、树脂镜片、防伪材料等领域。萘并吡喃类化合物由于其良好的光响应性及热稳定性受到人们越来越多的关注。人们在材料的使用过程中对材料表面的疏水疏油性能有着更高的要求。通过将光致变色材料与氟硅材料相互结合,实现普通基材不仅具有光致变色性能而且还具有良好的自洁性,增强了材料的实用性,使其具有更广泛的应用领域。以4,4’-二甲基二苯甲酮、乙炔钠和丁二酸酯为主要原料,合成了一种萘并吡喃光致变色化合物,通过优化合成步骤,使收率得到较大的提高。运用1HNMR、IR表征其分子结构,利用紫外分光光度仪对目标化合物的吸收光谱进行了研究,探究其光致变色性能。通过对介质环境、光照时间、溶剂种类、化合物浓度等多方面因素对光致变色材料的变色性能进行了详尽的分析,并且对其抗疲劳性能进行测定。另外以三种不同的异氰酸酯、含氟聚醚醇和Y-氨丙基三乙氧基硅烷(KH550)为主要原料,设计并合成三种氟硅聚合物,通过1HNMR、IR表征其化学结构,并且优化反应及测试条件,以达到更好的疏水疏油性能。结果表明：3-异氰酸酯基丙基三甲氧基硅烷与含氟聚醚醇反应所得产物疏水疏油性能最佳,其最优合成及测试条件为：以二月桂酸二丁基锡为催化剂,50℃的条件下反应6h,产物配成0.3%的HFE-7100溶液,另加入0.05%的浓盐酸溶液进行水解后,均匀喷涂在玻璃板上,150℃真空烘箱烘干3h,水接触角值达114.5°,正十六烷接触角达65.1°,疏水疏油性能良好。将萘并吡喃类化合物与氟硅涂覆材料结合起来,喷涂在玻璃板上,实验结果表明,玻璃板表面不仅具有优异的疏水性能,同时也具备良好的光致变色性能。
[Abstract]:Photochromic materials have a good application prospect, widely used in information storage, resin lenses, In the field of anti-counterfeiting materials, naphthalopyran compounds have attracted more and more attention because of their good photoresponse and thermal stability. The hydrophobic and oil hydrophobic properties of the materials are higher in the process of using the materials. By combining photochromic materials with fluorosilicon materials, The ordinary substrates not only have photochromic properties but also have good self-cleaning properties, which enhance the practicability of the materials and make them have a wider application field. The main raw materials are 4k4- dimethyl benzophenone, sodium acetylene and succinic acid ester. A naphthalopyran photochromic compound was synthesized and the yield was greatly improved by optimizing the synthetic steps. The molecular structure of the compound was characterized by 1H NMR-IR and the absorption spectrum of the target compound was studied by UV spectrophotometer. The photochromic properties of photochromic materials were analyzed in detail by means of various factors, such as medium environment, illumination time, solvent type, concentration of compounds, etc. In addition, three kinds of fluorosilicon polymers were designed and synthesized with three different isocyanates, containing fluoropolyether alcohol and Y aminopropyl triethoxysilane (KH 550) as raw materials, and their chemical structures were characterized by 1H NMRIR. The reaction and test conditions were optimized to obtain better hydrophobic and oil hydrophobic properties. The results showed that the hydrophobic and oil hydrophobic properties of the products obtained from the reaction of 1: 3-isocyanate propyl trimethoxy silane with fluoropolyether alcohol were the best. The optimum conditions for synthesis and measurement were as follows: the product was prepared into 0.3% HFE-7100 solution at 50 鈩，

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