荧光标识水处理剂的研究进展

利用荧光示踪技术检测水处理剂的残留量是一种有效的方法。作者讨论了荧光标识水处理剂的技术优势和应用前景，较全面地综述了国内外关于荧光标识水处理剂的合成、应用等方面的研究，依据其合成方法的不同分别对物理共混、聚合物改性、荧光单体共聚三个方面进行阐述，尤其是对荧光单体共聚制备荧光标识水处理剂作了重点介绍。并对荧光标识水处理剂在实现水处理系统在线监测和实时控制中的应用作了简要的介绍。     

丙烯酰胺类荧光聚合物的合成

对国内外丙烯酰胺类荧光聚合物的合成进展进行了综述。丙烯酰胺类荧光聚合物可通过可参与聚合的荧光染料及其标记的单体与丙烯酰胺类水溶性单体共聚,或荧光染料与丙烯酰胺类水溶性聚合物及其衍生物反应制得。这类聚合物的荧光检测的下限已达到０１×１０－６～００１×１０－６。     

荧光单体及含有这种荧光单体的标记处理聚合物在工业系统中的应用

发明领域 本发明一方面介绍一些荧光单体，另一方面还提供了含有这些荧光单体的标记处理聚合物。同时还介绍了在工业水处理中使用这些标记处理聚合物的方法。     

水溶性荧光聚合物的合成和应用

综述了丙烯酰胺类水溶性荧光聚合物的合成方法,应用,理论研究及最新进展。这类聚合物可通过可参与聚合的荧光染料及其标记的单体与丙烯酰胺类水溶性单体共聚,或荧光染料与丙烯酰胺类水溶性聚合物及其衍生物反应制得。这类聚合物的荧光检测下限已达到０．１×１０＾＿６－０．０１×１０＾－６ｇ／ｇ。     

阻垢剂聚马来酸酐的研究进展

马来酸酐类聚合物是以马来酸酐或水解马来酸酐为主要单体合成的一类聚合物阻塘剂。聚马来酸酐具有无毒、生物可降解性、热稳定性等特点,是绿色环保型水处理剂之一。文章着重介绍了通过物理、化学改性提高聚马来酸酐的阻垢性能的研究进展及发展前景。     

新型荧光纤维毡的制备及性能

先以丙烯腈和丙烯酸为单体合成聚合物（Polymer-1）,用荧光染料对聚合物进行接枝改性后得到聚合物（Polymer-2）;然后将这两种聚合物通过静电纺丝法制备出纳米纤维毡。研究了单体配比对Polymer-1共聚物粘均分子质量的影响;用DSC和IR测试手段对聚合物结构进行表征,用SEM和荧光光谱分析（FS）测试手段对纳...     

含萘荧光聚合物海水阻垢剂的合成及其阻垢性能

合成了水溶性含萘荧光单体2-(甲基丙烯酰氧)-N,N-二甲基-N-(1-萘甲基)乙基氯化铵,并将此荧光单体与丙烯酸进行共聚得到含萘荧光聚合物,考察了其在海水中的荧光特性和阻垢性能.结果表明.该聚合物的荧光强度与其质量浓度在海水中呈良好的线性关系,具有较好的阻CaCO3垢性能,表明这是一类潜在的可用于海水循环冷却的示踪型阻垢分散剂.     

含氟丙烯酸酯聚合物的特性与应用

1前言含氟丙烯酸酯和通常的非氟系丙烯酸酯单体一样有优良的均聚合性和与其他单体的共聚合性,并且用各种丙烯酸或丙烯酰卤与多种不同醇合成多种多样结构的单体。合成方法简单,所以是可以合成有氟或氟烷基的功能性聚合物的极有用的单体。这些含氟聚合物有独特的表面特性,故广泛用作纤维的憎水、增油处理剂,利用其光、电等其他功能性的用途也很多。本文介绍主要的含氟丙烯酸酯聚合物最近的物性研究与应用动向。2主要的含氟丙烯酸酯聚合物含氟丙烯酸酯聚合物中有酯部分的醇是含氟的和／或主链中含氟或氟烷基的（图1）。最常用的是聚（甲基…     

第44届国际水会议(IWC)论文摘要

用于水处理药剂的新单体——W.E.Hagstrand.The Lubrizol Corporation IWC-83-14 聚丙烯酰胺及其与丙烯酸共聚物等高分子聚合物早已用于水处理,最近发现带有磺酸基的高聚物具有独特性质。在液—固分离方面作为絮凝剂使用的聚合物具有较高的分子量,其絮凝效果也取决于离子化程度。作者合成了五种含有磺酸基的丙烯酰     

稀土/支化聚芳酰胺复合高分子的制备与表征

采用合成的Eu-NTA和对二氨基联苯(ODA)为单体,亚磷酸三苯酯(TPP)和吡啶(Py)为浓缩剂,用溶液聚合的方法制备出具有荧光性能的聚合物Eu-NTA-co-ODA。对所合成聚合物利用红外光谱、溶解性能测试、XRD、紫外光谱与荧光光谱等手段进行了表征。通过红外光谱分析表明,聚合物Eu-NTA-co-ODA成功合成,Eu3+与聚合物体系中羰基发生了作用。通过荧光光谱分析表明Eu-NTA-co-ODA与Eu-NTA的荧光谱带的位置和形状基本相同,都反映了Eu3+的特征发射,位于592nm处的荧光发射为Eu3+的5D0→7F1磁偶极跃迁峰,出现在618nm处的跃迁为Eu3+的5D0→7F2电偶极跃迁峰,强度高于磁偶极跃迁峰,表现出红色荧光。     

Fluorescent polyelectrolytes as protein sensors

This review discusses recent advances in protein sensing using fluorescent polyelectrolytes that are mainly water‐soluble conjugated polymers. A quencher‐labeled substrate or fluorophore‐labeled substrate is generally used as a probe. In the presence of an enzyme, the linker between substrate and quencher/fluorophore is cleaved and fluorescence of the polymer is either ‘turned on’ or ‘turned off’. Fluorescence behavior of these conjugated polymers is highly sensitive to conformation of the polymeric chains. Since upon binding with proteins the conformation is perturbed and fluorescence is affected, these polyelectrolytes have been used to study conformational changes in proteins. The conformation‐dependent fluorescence is also a limitation for these sensors in some cases and non‐conjugated polyelectrolytes have been shown to provide an alternative. Copyright © 2006 Society of Chemical Industry     

荧光共轭聚合物的结构设计与合成方法研究

荧光共轭聚合物既有机小分子荧光材料优良的光学品质,又具有高分子材料优越的可加工性能,成为了荧光材料的研究热点。因此,荧光共轭聚合物在开发新型化学、生物及爆炸物传感器等方面具有非常广阔的应用前景。本文介绍了几种典型的荧光聚合物,重点介绍了聚合物中荧光发色团的合成,从分子结构设计、应用及优缺点等方面对各种合成方法进行阐述比较。并且展望了今后荧光共轭聚合物的发展前景。     

Synthesis and characterization of novel hyperbranched fluorescent polymers that can be precisely used for metal ion detection and quantification

Four novel hyperbranched polymers with 4 or 5 ring-closed rhodamine units in each were achieved through RAFT polymerization followed by modification with rhodamine moieties. The solubility, thermostability, and photophysical properties of the polymers were studied. The polymers showed high selectivity and sensitivity to Fe³⁺ among various metal ions in CH₃CN/H₂O (75/25, v/v) and could signal Fe³⁺ through multichannels: emerging a new absorption around 558 nm, over 30 nm fluorescence redshift and significant fluorescence enhancement (including 33–37 folds in intensity and 8.3–12.8 folds in quantum yield), accompanied by visual and fluorescent color changes. The polymers could be applied in the analysis of Fe³⁺ in real water samples. © 2020 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137, 48933.     

苯乙烯马来酸酐共聚物（SMA）化学改性制备荧光聚合物及其荧光性能研究

用自行合成的2－氨基噻唑（1），2－氨基－4－苯基噻唑（2），2－氨基苯并噻唑（3）等荧光小分子化合物，与商品化的苯乙烯马来酸酐共聚物（SMA）中的酸酐基团反应，制成聚苯乙烯马来酰亚胺（SMI），实现了SMA化学改性，在获得荧光聚合物的同时，不仅保持了原SMA的可溶性，成膜性等优点，其热性能也得到了改善，通过示差扫描量热（DSC），凝胶色谱（GPC），红外，紫外及荧光光谱等手段表征了荧光聚合物的玻璃化转变温度，分子量及结构与荧光性能关系。     

Facile enzymatic preparation of fluorescent conjugated polymers of phenols and their application in sensing

The recognized drawback of utilizing metal catalysts for the synthesis of fluorescent conjugated polymers (CP) is the requirement for extensive purification to ensure complete removal of residual catalyst that would otherwise quench the fluorescence. In addition, typical synthesis of fluorescent CP involves multiple steps, monomers and solvents with varying levels of toxicity. This work demonstrates the possibility of utilizing oxidoreductase enzymes as the catalyst, for the one step polymerization of naturally occurring phenols to yield fluorescent conjugated polyphenols. The metal in the active site of the enzyme remains chelated during the synthesis allowing the polymers to be fluorescent as synthesized without the need for extensive purification. Three natural phenols, 4‐hydroxyphenylacetic acid, hydroxytyrosol, and chlorogenic acid were polymerized using Horseradish peroxidase as the biocatalyst. Spectroscopic techniques, UV–vis, Fourier transform infrared Spectroscopy–Attenuated Total Reflectance, and fluorescence, are used to characterize chemical structure and photoluminescence of these polymers. The polyphenols exhibit fluorescence with significant stokes shift in the range 30–100 nm rendering them useful in fluorescence quenching‐based sensors. Preliminary studies on use of these polymers, in the detection of nitro‐aromatic compounds in solution through using fluorescence‐quenching are also presented. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135, 46496.     

硝基芳烃爆炸物检测用荧光传感聚合物研究进展

使用荧光传感方法对硝基芳烃类爆炸物进行检测是当前研究的热点。在近年来用于检测的荧光聚合物中,侧链羟基型芴类聚合物对TNT的荧光淬灭效率最高,达到50%(20s);蝶烯基聚对苯乙炔撑型聚合物对DNT的荧光淬灭效率最高,达到75%(10s)。在国内外科研现状分析的基础上,提出了我国产业化道路发展方向的建议,对有前景的聚合物结构特点进行了点评。引用文献16篇。     

1，8-萘酰亚胺聚合型荧光材料的研究进展

文章介绍了1,8-萘酰亚胺及其聚合物的结构特点和荧光特性,以它为发色团的单体化合物和苯乙烯、丙烯酸酯,丙稀腈等聚合得到有强烈荧光特性的聚合型荧光材料,它们在荧光增自剂、荧光染料、电致发光材料、太阳能收集器、荧光传感器和荧光分子开关等领域有广阔的应用前景。     

Some applications of ultra-violet microscopy to polymers

The experimental requirements for ultraviolet and fluorescence microscopy are briefly discussed. The application of these techniques to polymers usually depends upon the use of some form of staining reagent to develop contrast within the polymer and three variations of this principle are described. In the first, ultraviolet absorbing or fluorescent additives are monitored during spherulitic crystallisation of a polymer with quantitative results which demonstrate rejection of the additive by the crystalline polymer and allow the diffusion coefficient for the additive in the molten polymer to be estimated. In the second application, the equilibrium distribution of absorbing additives after crystallisation is used to reveal crystallinity variations within the sample and to study the influence of non-crystallisable fractions upon these variations. Finally, reaction of carbonyl groups, with fluorescent or absorbing reagents, in oxidised polymers, has been investigated as a way of revealing uneven oxidation in polypropylene.     

Vinyl monomers bearing chromophore moieties and their polymers. IX. Initiation and photochemical behavior of water and liposoluble acrylic monomers having pyrimidinyl moiety and their polymers

Two acrylic monomers bearing a pyrimidinyl moiety, N‐acryloyl‐N′‐2‐pyrimidinylpiperazine (APMP) and N‐methacryloyl‐N′‐2‐pyrimidinylpiperazine (MPMP), are prepared by reactions of N‐2‐pyrimidinylpiperazine with corresponding acryloyl chlorides in the presence of triethylamine. APMP and MPMP can be polymerized either by using radical initiators such as azobisisobutylonitrile or potassium persulfate (KPS) or by UV light irradiation without any sensitizer. APMP, MPMP, and their polymers are water soluble and liposoluble. They can act as sensitizers to initiate the photopolymerizations of acrylonitrile (AN) in DMF and acrylamide (AAm) or N‐acryloylmorpholine (AMPL) in an aqueous medium. They can also act as one component of a redox initiation system by combining with KPS to initiate the polymerization of AAm in an aqueous medium, and a superhigh molecular weight up to 10⁶–10⁷ for P(AAm) or 10⁵–10⁶ for P(AMPL) is obtained. The above polymerizations are pursued kinetically. The mechanism of the photopolymerizations initiated by MPMP or P(MPMP) are confirmed by an electron spin resonance study. By the fluorescent analysis of PAN and P(AAm) initiated by MPMP, APMP, or their polymers we confirm that they not only initiate the polymerization but also enter the polymer chains. The fluorescence spectra of MPMP, APMP, and their polymers are recorded. A fluorescence structural self‐quenching effect is also observed. The fluorescence of P(MPMP) can be quenched by adding electron‐deficient unsaturated compounds such as methacrylonitrile, AN, fumaronitrile, tetracyanoethylene, methyl acrylate, and methyl methacrylate and the correlation between the Stern–Volmer constants and the electron deficiency of the quenchers is described. The fluorescence quenching of P(MPMP) by a water‐soluble C₆₀ derivative is also demonstrated. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 76: 19–28, 2000     

New fluorescent monomers and polymers displaying an intramolecular proton‐transfer mechanism in the electronically excited state (ESIPT). IV. Synthesis of acryloylamide and diallylamino benzazole dyes and its copolymerization with MMA

Six new fluorescent monomers were synthesized by reaction of 2‐(5′‐amino‐2′‐hydroxyphenyl)benzazole derivatives with acryloyl chloride and allyl bromide. UV–vis and steady‐state fluorescence in solution were used to characterize its photophysical behavior. The monomers are fluorescent in the blue, green, yellow, and red region, with a large Stokes shift between 92 and 226 nm. A dual fluorescence ascribed to a conformational equilibrium in solution in the ground state dependent on the solvent polarity could be observed in the fluorescence emission spectra of the monomers. The radical polymerization of the monomers with methyl(methacrylate) allowed the production of fluorescent polymers in the blue–green region, with good optical and thermal properties. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci, 2006