磺化四-(p-羟基苯基)间苯二酚杯[4]芳烃的制备及其鞣制性能-化学专业论文.docxVIP

构进行了表征。FT-IR结果表明：1026cm以吸收峰是S=O伸缩振动吸收峰， 构进行了表征。FT-IR结果表明：1026cm以吸收峰是S=O伸缩振动吸收峰， 1H NMR结果表明：四一(p．羟基苯基)问苯二酚杯[4]芳烃中对羟基苯甲醛的羟 基邻位氢没有出峰，表明成功将磺酸基引入四．(p一羟基苯基)间苯二酚杯【4】 芳烃中。 将磺化四一(p．羟基苯基)间苯二酚杯[4]芳烃应用于山羊酸皮的无铬和少 铬鞣制工序中，以鞣制后坯革的收缩温度为考察指标，鞣制pH、鞣剂用量、 鞣制温度等为考察因素，对其鞣制工艺进行了优化。应用结果表明：磺化四 一(p．羟基苯基)间苯二酚杯[4]芳烃具有鞣制性能，10％磺化四．(p一羟基苯基)间 苯二酚杯[4]芳烃单独鞣制后坯革的收缩温度为70．9C，增厚率达42．2％，物 理机械性能与常规铬鞣革相当；6％磺化四一(p一羟基苯基)间苯二酚杯[4】芳烃 配合2．5％铬粉鞣制后坯革的收缩温度为95．8℃，增厚率达50．6％，废液中 Cr203含量降低至256mg／L，物理机械性能优于常规铬鞣革，既可以降低铬 用量，也可减少铬污染。 关键词：间苯二酚杯[4】芳烃，磺化，水溶性，鞣制 万方数据 SYNTHE SYNTHE SiS AND TANNING PRoPER，rIES oF SULFoNATED TETRA-(P—HYDROXYPHENYL) CALIX[4IRESORCINE ABSTRACT Calixarenes are known as the third generation supramolecular poster after crown ethers and cyclodextrins．There are many phenolic hydroxyls and hydrophobic cavity on the calixarene molecule．Moreve，calixarenes are mainly used in ionophore and molecular ion recognition．Calixarenes show poor solubility in water,which largely limited the applications．In order to enlarge the application of calixarene，the hydrophilic modification of calixarene has attracted much attention in research，for example，hydrophilic groups such as sulfonic group，carboxyl，amino are introduced in calixarene to get the water·soluble calixarene．For now,sulfonated calixarene is the most widely studied calixarene in the water-soluble calixarene． Chrome tanning is the primary tanning method in tannery due to its excellent leather property．The absorption of tanning agents is very low and about 30-40 percent of chrome tanning agent remains in wastewater．It not only pollutes the environment but also wastes the resource．Whereas，the sulfonated calixarene not only has the good solubility in water but also can connect with the amino of collagen fibers forming hydrogen bond and covalent bond．Besides，the sulfonic group of calixarene up—rim has coordination ability with chrome．In this study,thesulfonatedtetra-(p—hydroxyphenyl)calix[4]resorcinewassynthesized and applied in chrome-·free and less--chrome tanni