氰苄基方酸菁染料的合成及光谱性能

以2,3,3-三甲基-3H-吲哚为原料,合成了N-氰基取代吲哚啉季铵盐。采用一步法将方酸与吲哚啉季铵盐缩合制得对称氰苄基方酸菁染料,采用重结晶法对合成染料进行分离提纯,利用核磁共振氢谱、红外光谱、质谱等对染料进行了结构表征。考了查染料的光谱性能。     

甲苄基不对称三甲川菁染料的合成及光谱性能

以对肼基苯磺酸和3-甲基-2-丁酮为原料经催化合成2,3,3-三甲基-3H-吲哚-5-磺酸,进一步制得钾盐。经钾盐合成N-甲苄基取代吲哚季铵盐。采用一步法将钾盐与吲哚季铵盐缩合为一种不对称三甲川菁染料,并考查其光谱性能。所合成染料经C-18反相柱分离提纯,利用核磁共振氢谱进行了结构表征。     

水溶性羧苄基甲苄基三甲川菁染料的合成及光谱性能

文章以对肼苯磺酸和3-甲基-2-丁酮为原料合成2,3,3-三甲基-3H-吲哚-5-磺酸,再制得钾盐,由钾盐合成两种N-烷基取代吲哚季铵盐,最后采用一步法合成水溶性三甲川菁染料。所合成的染料经C-18反相柱分离提纯,利用核磁共振氢谱进行结构表征,并测试染料的光谱性能。     

N-乙基Cy5菁染料的合成及光谱性能测试

通过中间体1-乙基-2,3,3-三甲基-3H-吲哚啉-5-磺酸钾和中间体1-乙基-2,3,3-三甲基-3H-吲哚啉分别与缩合剂3-丙烯醛缩苯胺合成两种N-乙基Cy5菁染料。采用柱层析法分离提纯,并用液质色谱仪分析结构,紫外可见及荧光光谱检测其荧光性能;在乙醇、甲醇、丙酮、乙腈和乙酸乙酯等14种溶剂中,通过紫外可见分光光度计和荧光光谱仪,检测不同离子对其光谱性能的影响。结果表明:在1×10~(-5)mol/L的N-乙基Cy5菁染料乙腈溶液中,Cu~(2+)离子对菁染料紫外-可见吸收峰有着显著的影响,加入Cu~(2+)离子后,溶液由蓝色变成了透明无色,而其他离子并无此现象。     

含端炔基的菁染料及其合成方法

本发明公开了一种含端炔基的菁染料及其合成方法，本发明在芳香环上引入端炔基，如此获得的菁染料不仅可以直接作为一种带有活性基团的染料应用在生物荧光标记中，还可以作为一种非常有用的中间体，以满足不同的需要。     

四碳连接臂水溶性吲哚方酸双菁染料的合成及性能

以苯肼和对肼基苯磺酸为原料合成了一种水溶性对称吲哚方酸双菁染料。最终染料用C-18反相柱进行分离提纯,通过核磁共振氢谱对染料结构进行了表征,测试其在不同溶剂中的紫外-可见吸收和荧光发射光谱。结果发现所合成双菁染料的吸收和发射光谱范围以及Stokes位移、摩尔消光系数与单菁染料相比没有大的变化,荧光量子产率小于单菁染料。     

3,3‘—对亚苯基双香豆素衍生物的合成及其光谱性能研究

本文合成了３，３＇对亚苯基双香豆素及四个新的衍生物，并对其光谱性能进行了研究。     

3，3’－对亚苯基双香豆素衍生物的合成及其光谱性能研究

本文合成了３，３′－对亚苯基双香豆素及四个新的衍生物，并对其光谱性能进行了研究。     

双羟基七甲川菁染料的合成及其光谱性能研究

通过分子设计,分别以2,3,3-三甲基吲哚和1,1,2-三甲基-1H-苯并[e]吲哚为原料,首先合成两种季铵盐,再分别同2-氯-1-甲酰-3-羟基亚甲基环己烯缩合,利用Suzuki-Miyaura反应实现染料中位C—C偶联,以超过70%的收率制备了4种带有活性羟基的七甲川菁染料。利用核磁和高分辨率质谱对染料结构进行了表征。以乙醇为溶剂,用紫外-可见光谱仪考察了染料的光谱性能。采用电流为13.4 A的高压氙灯为光源,考察了染料的光稳定性。探究了pH对染料颜色的影响,并尝试推论变色机理。结果表明,4种七甲川菁染料均在近红外区产生较强吸收,在无水乙醇中均具有良好的光稳定性。不同pH下,染料的光谱性能研究发现,七甲川菁染料吸收光谱受pH影响较大,在pH=5～7时,染料在近红外区有最佳吸收。     

咪唑类离子液体的合成和光谱表征

以N-甲基咪唑为原料合成了离子液体氯化1-丁基-3-甲基咪唑盐([BMIm]Cl)、1-丁基-3-甲基咪唑氟硼酸盐([BMIm]BF4)、1-丁基-3-甲基咪唑六氟磷酸盐([BMIm]PF6),并对合成的产物作了紫外光谱、红外光谱、核磁共振的结构表征。     

二烃基锡二元羧酸酯的合成和波谱性质研究

合成了二丁基锡和二辛基锡２个系列的α、ω－二元羧酸酯类化合物,用ＩＲ＾１ＨＮＭＲ和ＭＳ对其进行了结构表征,着重讨论了该类化合物的波谱性质特征。     

含呋喃环双噁二唑的合成与光谱性质

合成了6个3,4-二(2’-芳基-1’,3’,4’-噁二唑基)呋喃,化合物的结构经1H NMR、FTIR、MS表征。初步发光性能表明,在272～293 nm出现最大紫外-可见吸收峰;在DMF溶液中,341～375 nm出现最大荧光发射峰,是一类紫色发光材料。     

Synthesis,characterization, and properties of a polyhedral oligomeric octadiphenylsulfonylsilsesquioxane

A novel polyhedral oligomeric octadiphenylsulfonylsilsesquioxane (ODPSS) was synthesized from octaphenylsilsesquioxane and benzenesulfonyl chloride via a Friedel–Crafts reaction with a high yield. ODPSS was identified by Fourier transform infrared spectroscopy, ¹H‐NMR, ¹³C‐NMR, ²⁹Si‐NMR, matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI–TOF MS), wide‐angle X‐ray diffraction, and elemental analysis to be a kind of polyhedral oligomeric silsesquioxane of a T₈R₈ structure. ODPSS exhibited superior thermal stability according to thermogravimetric analysis. Its initial thermal decomposition temperature (T_onset) was at 491°C in air and 515°C in nitrogen. Thermal and mechanical properties of epoxy resin (EP) composites with ODPSS added were studied by differential scanning calorimetry and tensile testing. The results show that the incorporation of ODPSS at a low loading content not only improved the glass‐transition temperature of the EP composites but also enhanced their tensile strength. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 40892.     

Bismaleimide monomers with amide units: Synthesis and properties

A series of bismaleimide monomers with amide groups were prepared and characterized. Structurally different bismaleimides (with amide units) were synthesized by a reaction between 4‐maleimidobenzoyl chloride and various diamines. The monomers were characterized by infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, and elemental analysis. The thermal characterization of the bismaleimides was accomplished with differential scanning calorimetry and dynamic thermogravimetric analysis. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 567–572, 2006     

Synthesis of Novel D-Pi-A Chromophore with Two Hydroxyl Groups in Electron Donor

New electro optical chromophore with 4-(diethylamino)-2,6-bis((6-hydroxyhexyl)oxy)benzaldehyde as electron donor was synthesized and characterized by ¹H NMR spectra and mass spectra. Two long branches were introduced to the electron donor to reduce the interaction among the chromophores and improve the chromophores’ solubility. Hydroxyl groups were introduced to branches’ end, which could be easily reacted with isocyanate affording us polyurethane. In this article, novel polyurethane with this new chromophore as side chains was prepared and used as thermo optical films by spin coating. These films showed us low optical absorption at communication wavelength, good thermal stability and large thermo-optics coefficients.     

淀粉酯的合成、性质及应用

由于淀粉的可再生性和可应用性现已受到人们的广泛关注。通过酯化过程对淀粉改性,使淀粉的性质发生改变,扩大了淀粉的应用领域。文章对琥珀酸淀粉酯、醋酸淀粉酯、柠檬酸淀粉酯、长链脂肪酸淀粉酯、磷酸淀粉酯、硫酸淀粉酯的合成、性质及应用进行了综述,并对其发展前景进行展望。     

3-(2-芳基-3-乙酰基-1,3,4-噁二唑啉-5-基)-1,1-二甲基- 1,2,5,.6-四氢吡啶碘化物的制备及结构确证

报道了烟酰肼与取代芳醛反应生成相应的烟酰芳腙在醋酐催化下生成2芳基－3－乙酰基－5－（吡啶－3－基）－1，3，4恶二唑啉，不经分离直接与碘甲烷作用生成相应的季铵盐，接着用硼氢化钠还原季铵化物而得含四氢吡啶环和恶唑啉环的新化合物3－（2－芳基－3－乙酰基－1，3，4－恶二唑啉－5－基）－1，1－二甲基－1，2，5，6－四氢吡啶碘化物，其结构经IR，^1HNMR，MS和元素分析确诊。     

Synthesis,polymerization, and properties of the allyl‐functional phthalonitrile

A novel bisphthalonitrile monomer containing allyl groups (DBPA‐Ph) had been synthesized via the reaction of diallyl bisphenol A (DBPA) and 4‐nitrophthalonitrile. The chemical structure of DBPA‐Ph was confirmed by ¹HNMR, ¹³CNMR, and FTIR spectroscopy. The curing behaviors and processability of DBPA‐Ph were studied by differential scanning calorimetry (DSC) and dynamic rheological analysis. The monomer manifested a two‐stage thermal polymerization pattern. The first stage was attributed to the polymerization of allyl groups and the second to the ring‐form polymerization of cyano groups. The result of dynamic rheological analysis indicated the monomer had wide curing window and the self‐catalyzed curing behavior. DBPA‐Ph polymers were prepared from the thermal polymerization with short curing time, showing high glass transition temperature (>350°C) and attractive thermal decomposition temperature (>430°C). The outstanding glass transition temperature, desirable thermo‐oxidative stabilities, good processability and sound process conditions could provide more applications to the DBPA‐Ph polymers. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 41203.     

含酰胺基双子阳离子表面活性剂的合成与性能研究

以N,N-二甲基丙二胺分别与十二酸、十四酸、十六酸和十八酸反应得到酰胺基叔胺,再制成其盐酸盐,盐酸盐与环氧氯丙烷在水溶剂中合成了相应的含酰胺基双子(gemini)阳离子表面活性剂,采用红外光谱、质谱、元素分析、核磁共振波谱进行了结构表征,并测定了阳离子表面活性剂表面化学性能.结果表明,真空干燥后含酰胺基gemini阳离子表面活性剂的质量分数大于98%,该含酰胺基gemini阳离子表面活性剂具有很强的表面吸附和胶束生成能力,随着脂肪碳链长度由12增加到18,cmc由9.12×10-5mol·L-1减少至3.31×10-5mol·L-1,ccmc/c20由3.02增加到3.98,Krafft点也有升高的趋势.     

Synthesis and Characterization of Novel Second-Order Nonlinear Optical Chromophore with Multi-Hydroxyl Groups Donor

New electro optical chromophore with 4-(bis(2-hydroxyethyl)amino)-2,6-dipropoxybenzaldehyde as electron donor was synthesized and characterized by ¹H NMR spectra and mass spectra. Four hydroxyl groups were introduced to the electron donor, which could be easily reacting with carboxyl, isocyanate, anhydride, and so on, to afford us second-order nonlinear optical polymers. Chromophore T showed us good solubility in common solvents, thermal stability (above 200°C) and expected Uv-vis absorption. In this article, polymethyl methacrylate (PMMA) doped with chromophore T at different loading density was prepared to second- order nonlinear optical films by spin coating. These films showed us large second-order nonlinear optical coefficients, 13.5, 19.7, 24.3, and 26.4 pm/V for the second-order nonlinear optical films with chromophore loading density of 10 wt%, 20 wt%, 30 wt%, and 40 wt%, respectively.