7—氨基—1—羟基萘—3—碘酸（γ酸）衍生的酸性染料的合成及其性能研究

本文涉及由γ酸衍生的，在分子中含有磺酰胺基的红色酸性染料的合成，该类染料构想用来在弱酸性染浴中染聚酰胺和羊毛纤维，通过检测染料的应用性能，坚牢度和光谱特性，发现磺酰胺基和在它的氮原子上的取代基会影响该类染料的性能。     

C．I．酸性红361和2-氨基-N-甲基-N-环已基苯磺酰胺等的合成

该文推荐了c.I.酸性红361和2-氨基-N-甲基-N-环已基磺酰胺和其它磺酰胺基与γ-酸所衍生的红色酸性染料的合成方法.该类红色染料能在弱酸性染浴中用于羊毛、蚕丝和聚酰胺纤维的染色.色泽鲜艳、各项坚牢度佳、匀染性良好.     

2，5-二取代1，3，4-噻二唑的合成

以5-氨基-2-巯基-1,3,4-噻二唑为原料,经过胺基酰基化、氯气氧化制得5-乙酰胺基-1,3,4-噻二唑-2-磺酰氯,化合物与N-甲基哌嗪、苯胺反应,合成两个未见报道的目标产物:5-乙酰胺基-1,3,4-噻二唑-2-(N-甲基哌嗪磺酰胺)和5-乙酰胺基-1,3,4-噻二唑-2-(磺酰苯胺).利用IR、H-NMR、LC-MS对目标产物进行表征.     

4,4′-二(对氨基苯磺酰胺基)-二苯醚的合成

以乙酰苯胺和4,4′-二氨基二苯醚为主要原料,经氯磺化,酰胺化,脱乙酰化,合成了无致癌性染料中间体4,4′-二(对氨基苯磺酰胺基)-二苯醚,确定了最佳的合成路线,使反应总收率达到78.51%,产品经IR、1HNMR、13CNMR、MS确定了结构。     

4,4''-二(对氨基苯磺酰胺基)-二苯醚的合成

以乙酰苯胺和4,4‘-二氨基二苯醚为主要原料,经氯磺化,酰胺化,脱乙酰化,合成了无致癌性染料中间体4,4‘-二(对氨基苯磺酰胺基)-二苯醚,确定了最佳的合成路线,使反应总收率达到78.51%,产品经IR、1HNMR、13CNMR、MS确定了结构.     

对苯磺酰烷基胺偶氮-2-萘酚系聚丙烯纤维用橙色染料的合成及应用

本文以对氨基苯磺酰烷基胺重氮盐与2-萘酚偶合,分别制得了对苯磺酰正丁胺偶氮-2-萘酚、对苯磺酰正辛胺偶氮-2-萘酚、对苯磺酰正十二胺偶氮-2-萘酚和对苯磺酰正十八胺偶氮-2-萘酚系聚丙烯纤维用橙色染料,其熔点分别为187.6℃、165.9℃、138.0℃和108.1℃;热分解点309.5℃、302.5℃、262.1℃和215.8℃;最大吸收波长分别为480.2nm、480.2nm、480.0nm和480.0nm。在染色条件下,经过120分钟染色,四只染料在聚丙烯纤维上的上染率分别为51.1％、54.0％、55.9％和57.9％。     

3-甲磺酰胺基 -N,N-二乙基苯胺合成工艺研究

以间苯二胺为原料,经单甲磺酰化、烷基化等反应合成了３ 甲磺酰胺基 Ｎ,Ｎ 二乙基苯胺,并对其反应条件进行了研究。总收率达８５％左右     

2-氨基-4-氯苯酚-6-磺酸合成研究

一、前言羊毛染色通过常用酸性染料、媒染染料、活性染料和中性染料。酸性染料在强酸性介质中染色对羊毛纤维有损伤并影响羊毛的手感,牢度也不理想。媒染染料色光不漂亮,色泽暗,染色工艺复杂,重视性差,含铬印染废水污染严重。磺酰胺型1:2金属络合染料水溶性差匀染     

聚醚-砜单体4,4’-双(4-羟基苯磺酰)联苯的合成工艺研究

4,4’-双(4-氯苯磺酰)联苯和4,4’-双(4-羟基苯磺酰)联苯是聚醚-砜等重要的单体。以四氯化碳为溶剂,氯苯用氯磺酸磺化、氯化得到对氯苯磺酰氯,在无水氯化铁的催化下,对氯苯磺酰氯与联苯反应得到4,4’-双(4-氯苯磺酰)联苯,然后在氢氧化钠溶液中水解得到4,4’-双(4-羟基苯磺酰)联苯。总收率为55.6%。     

染料中间体3'-氨基4-乙酰氨基苯磺酰替苯胺的合成研究

本文合成了染料中间体3-氨基-4.乙酰氨基苯磺酰替苯胺,研究了磺酰胺化反应的因素对反应的影响,结果表明:在20℃下,pH值为8.0-9.0,n(对乙酰氨基苯磺酰氯):n(间苯二胺)为1.3:1.0时,3-氨基-4-乙酰氨基苯磺酰替苯胺的产率达到最高,为84.2%.磺酰胺化产物经1 H-NMR,IR确定其结构.     

Antimicrobial sulphonamide azo dyes

Sulphonamide motifs are widely found in many drug candidates with relevant biological activity. Moreover, sulphonamide azo dyes are interesting candidates for synthetic chemists because such dyes provide access to a broad range of functional group transformations. Therefore, many synthetic procedures for the preparation of sulphonamide azo dyes have been developed in recent decades, and the search for rapid and efficient protocols is ongoing. The current article aims to review recent trends in the synthesis of sulphonamide azo dyes and their applications as high‐performance colorants with antimicrobial activity. For convenience, the diverse uses of sulphonamide azo dyes are discussed from the perspective of the application type rather than the structural class.     

Aggregation Behaviour of Acid Dyes in N,N-Dimethylformamide-Trichloroethylene Solvent Mixtures - A Quasielastic Light-scattering Study

A new technique, quasielastic light scattering, was employed to study the aggregation behaviour of three acid dyes in dimethylformamide—trichloroethylene solvent mixtures. Observations on the aggregation of these dyes showed that they behaved differently in these mixtures than in aqueous solution. The extent of aggregation was found to vary with the number of sulphonic acid groups present in the dye molecule. Both monosulphonated and disulphonated acid dyes showed a tendency to aggregate with increase either in dye concentration or in trichloroethylene content in dimethylformamide. The low dielectric constant of trichloroethylene was responsible for the tendency of dye to aggregate with increase in trichloroethylene content. The trisulphonated acid dye showed least tendency to aggregate; this may be accounted for by the fact that sulphonic acid groups in the dye molecule are located at sites unfavourable to aggregation.     

Synthesis and properties of acid dye derivatives of arylsulphonanilides

Thirty-five acid dyes suitable for dyeing wool and polyamide fibres were synthesized, using derivatives of arylsulphonanilides prepared from o-nitrotoluene or chloronitrotoluene. As coupling components, derivatives of 1-phenyl-3-methylpyrazolone-5 and 2-naphthol were used. Fastness and colour properties of the prepared dyes were determined. It was found that some of the prepared dyes on polyamide fibres show batho- and hypso-chromic effects as well as hypo- and hyper-chromic effects during testing of their fastness to washing and to acid and alkaline perspiration. Spectroscopic examinations and determination of pK_a of the sulphonamide and hydroxyl groups of the dyes showed that the observed changes are associated with aggregation or disaggregation of the dyes on fibres or with a change in the azo-hydrazone equilibrium. Some of the prepared dyes are characterized by very good dyeing and fastness properties.     

Novel Self-assembled Isonicotinic Acid Derivative and Zinc Porphyrin Dyads and Applications in Dye Sensitized Solar Cells

A new self-assemblies based on double-deck dyes ZnTPP-Wi (i?=?1–3) were synthesized and applied in dye-sensitized solar cells (DSSCs). Anchoring molecules (Wi i?=?1–3) consisting of phenyl carboxyl acid and cyanoacetic acid group. Capping layer dyes zinc meso-tetraphenylporphine (ZnTPP) with anchoring molecules Wi through axially coordination bonds of Zn-to-ligand self-assemblies solar cells devices. We herein report a consisting acylamide and cyanoacetic acid group W3 as an anchoring molecule for the axial coordination with upper zinc porphyrin ZnTPP. W3 was synthesized by introducing acylamide and cyanoacetic acid groups may inhibit adverse dye aggregation and improving electrons are effectively injected into the TiO₂ semiconductor surface. Thus, W3 anchoring molecules can be used to fabricate efficient solar cells with ZnTPP porohyrin dye, achieving good photoelectric performance, indicative of their general applicability in fabricating good-performance DSSCs. The assembled modes were also verified by transmission electron microscopy (TEM). The photoelectrochemical efficiencies for dye ZnTPP-W3 are best than those of self-assembly dyes prevailingly ascribed to larger J_sc and V_oc.

     

Azide Reactive Dyes

Reactive dyes containing a sulphonylazide group can undergo fixation on nylon substrates by two different mechanisms. Under aqueous dyeing conditions, at or below 120d? C, the free amino end-groups of the polymer attack the sulphonylazide group with displacement of azide ion, and results in attachment of the dye to the substrate by a sulphonamide linkage. In contrast, if the dyed substrate is subjected to dry heat fixation at 170d? C, the azide group decomposes to a sulphonylnitrene species which undergoes insertion into C-H bonds of the polymer. The dye is again attached by a sulphonamide bridge, but in this case the amount of dye that can be fixed is independent of the amino end-group content of the polymer.     

国外高浓水性液状酸性染料的制备方法

液状染料的主要优点是避免了处理过程中的粉尘问题,并且染料计量时方便、快速。本文通过实例介绍了高浓度酸性染料水溶液的制备方法,并对制备高浓度酸性染料水溶液提出了建议。     

酸性染料可染聚酯纤维的研究

采用对苯二甲酸(PTA)、乙二醇(EG),在三氧化二锑催化的条件下进行酯化反应,然后加入制备好的中间体,进行缩聚反应,合成出了含有酰胺基结构的酸性染料可染聚酯。使用红外光谱对其分子结构进行表征,同时研究了酸性染料可染聚酯的纺丝工艺及染色性能。结果表明:酸性染料可染聚酯分子骨架上含有酰胺基结构;酸性染料可染聚酯纤维的酸性染料上染率可以达到80%以上,分散染料上染率可以达到90%以上,具有较好的酸性染料可染性和分散染料可染性。     

Preparation of Acid Dye Molecule Surface-Imprinted Material for Effective Removal of Acid Dyes from Water and Study on its Molecule Recognition Performance

An acid dye molecule surface-imprinted material was prepared successfully for the dye removal from water by using a novel molecular surface-imprinting technique. The cationic monomer acryloyloxyethyl trimethyl ammonium chloride (DAC) was used as functional monomer, and sunset yellow was used as a model compound of water-soluble acid dyes. In the aqueous solution, DAC molecules were combined around sunset yellow molecules via electrostatic interaction. The graft/cross-linking copolymerization of DAC and the crosslinker on SiO₂ particles was initiated by a surface-initiating system of –NH₂/S₂O₈^2-, resulting in the sunset yellow molecule surface-imprinted material MIP-PDAC/SiO₂. MIP-PDAC/SiO₂ possesses special recognition property for sunset yellow.     

酸性染料商品化加工工艺探讨

本文探讨了pH、助剂和研磨对酸性染料性能的影响。实验结果显示:适宜的pH和助剂可提高酸性染料的溶解度,研磨对提高酸性染料的溶解度没有作用且使色光变暗。     

超细PA/PU合成革用酸性染料的染色性能研究

本文通过使用各种酸性染料(一般酸性染料、弱酸性染料、酸性络合染料、中性染料)对超细PA/PU合成革进行染色试验,研究了它们各自的染色性能,探讨了固色剂对染料的固色性能,分析并总结了各染料结构及颜色与染色性能之间的关系。