纳米材料在聚合物摩擦学中的研究进展

通过比较纳米粒子与微米颗粒在改性聚合物摩擦学方面的差异，对纳米材料在改性聚合物摩擦学方面的研究进行综述，并对这类材料的研究方向提出建议。     

纳米材料在混凝土中的应用研究进展

纳米材料应用在混凝土中可改善混凝土的耐久性等性能,因此其在混凝土中的应用成为当前研究的一个热点.本文综述了国内外纳米SiO2、CaCO3以及纳米金属氧化物等几种纳米材料在混凝土中的应用,对纳米材料在水泥混凝土中起到的作用和需注意的问题进行了归纳总结,并提出了简单的解决措施,展望了纳米材料在水泥混凝土中的发展趋势,力图为其在混凝土的应用提供一定的研究基础.     

纳米材料在生物检测中的应用

纳米颗粒是生物医学中研究最多、应用最广的纳米材料,有许多独特的性质.综述了近年来国际上以纳米颗粒为基础的纳米技术在生物传感器及生物检测中的研究成果和进展,介绍了纳米颗粒的制备方法及其在纳米生物传感器和纳米生物芯片中的应用,结合纳米病原微生物检测介绍了有关免疫传感器检测细菌的研究成果,并对该领域的应用前景进行了展望.     

纳米材料在钻井液体系中的研究进展

由于纳米材料具有比表面积大、表面性质可调节及形貌多样等特点,在钻井液体系中有很大应用前景。本文主要研究了包括聚合物纳米材料、陶瓷纳米材料、金属纳米材料及碳基纳米材料在内的纳米材料改性钻井液的研究进展,这些纳米材料对钻井液的流变性能、滤失性能、导热性能、固壁性能等有极大提升。     

纳米材料在涂料中的应用

据专家分析,根据纳米学科(纳米电子学、纳米材料学、纳米机械学、纳米生物学、纳米制造学、纳米显微学和纳米测量学等)综合研究水平,中国当前纳米材料研究位居世界第5位,这是中国21世纪科技发展难得的机遇,但就纳米材料在涂料中的应用而言,中国仍处于起步阶段。     

纳米材料在聚合物加工中的应用

介绍纳米材料的特性,制备方法,以聚合物为基体的纳米复合材料中纳米材料的表面处理方法,纳米材料在聚合物改性中的应用。     

纳米材料及其在聚合物中的应用

介绍了纳米材料的结构、性能、表面处理方法以及纳米粒子改性聚合物的增韧机理,并简述了无机纳米粒子在聚合物中的应用     

纳米材料在水性涂料中的应用

本文简要介绍了纳米材料在水性涂料中的应用形式和效果，并对目前存在的一些问题进行了探讨。     

纳米材料在环境保护中的应用

文章介绍了纳米材料及其性质,着重介绍了纳米材料在治理有害气体、处理污水等环保领域的应用,并对纳米材料在环境产业方面的发展趋势进行了阐述。     

离子液体在纳米材料中的应用进展

离子液体的特殊结构使其具有液态范围宽、溶解能力强、离子传导率高、热稳定性高等优点,它在纳米材料领域中的应用日趋广泛。本文综述了离子液体在纳米材料包括纳米金属、纳米氧化物、纳米导电聚合物的制备方法,纳米材料的改性以及离子液体在合成无溶剂纳米流体中的应用进展。     

Metal Sulfide Semiconductor Nanomaterials and Polymer Microgels for Biomedical Applications

The development of nanomaterials with therapeutic and/or diagnostic properties has been an active area of research in biomedical sciences over the past decade. Nanomaterials have been identified as significant medical tools with potential therapeutic and diagnostic capabilities that are practically impossible to accomplish using larger molecules or bulk materials. Fabrication of nanomaterials is the most effective platform to engineer therapeutic agents and delivery systems for the treatment of cancer. This is mostly due to the high selectivity of nanomaterials for cancerous cells, which is attributable to the porous morphology of tumour cells which allows nanomaterials to accumulate more in tumour cells more than in normal cells. Nanomaterials can be used as potential drug delivery systems since they exist in similar scale as proteins. The unique properties of nanomaterials have drawn a lot of interest from researchers in search of new chemotherapeutic treatment for cancer. Metal sulfide nanomaterials have emerged as the most used frameworks in the past decade, but they tend to aggregate because of their high surface energy which triggers the thermodynamically favoured interaction. Stabilizing agents such as polymer and microgels have been utilized to inhibit the particles from any aggregations. In this review, we explore the development of metal sulfide polymer/microgel nanocomposites as therapeutic agents against cancerous cells.     

高分子聚合物在洗涤剂中的应用

从高分子聚合物的特点出发 ,综述了不同分子结构、不同分子量的高分子聚合物在洗涤剂中各个方面的应用。这些应用方面包括 :高分子表面活性剂 ;高分子对洗涤剂在制造和使用中的流变行为改性 ;高分子在洗涤过程中的抗再沉积作用、防色转移作用和对织物纤维的抗污处理作用(又称污垢释放剂作用)。最后 ,就高分子在洗涤剂中应用研究的现状及趋势作了简要概述。     

智能聚合物在生物化学领域的应用进展

简要介绍了智能水凝胶的制备,概述了近年来智能聚合物在酶固定、蛋白质分离与重折叠、基因载体、细胞培养等生物化学领域中的应用进展.     

聚合物电致发光器件老化机理的研究

文章比较了聚合物pheny1-substitutedpoly[p-pheny1eneviny1ene]derivative(P-PPV)绿光电致发光器件老化前后的I-V特性曲线及亮度曲线,详细地分析了黑斑产生的可能原因。对提高聚合物电致发光器件的稳定性具有一定的指导意义。     

微波在聚合物科学中的应用

综述了聚合物科学中微波应用的研究进展,讨论了微波在聚合物合成中的研究概况。也介绍了聚合物微波加工的原理及对材料结构与性能的影响,一方面微波在树脂固化中得到广泛的应用;另一方面微波在橡胶硫化中也取得了较大的成功。另外也介绍了微波在聚合物改性方面的应用。最后指出目前存在的一些问题。     

Binary solvent mixture-induced crystallization enhancement for a white emissive polyfluorene copolymer toward improving its electroluminescence

The morphology of fluorescent polyfluorene (PF) derivatives has strong effects on their electroluminescent (EL) performance. Herein, the influence of processing solvents on the morphology of PF-based white emissive polymer and its correlation to the EL behavior is studied. It is found that the PF copolymer films prepared from chlorobenzene:toluene (CB:TOL) solvent mixtures show stronger tendency to form crystalline α phase PF upon thermal annealing than those prepared from pure TOL or CB solvents. The evaporation rate difference in solvent mixtures can assist in the formation of crystal nucleus and enhance the crystallinity of PF backbone after thermal annealing. The results also reveal that the solvent mixture-processed fluorescent PF-based white emissive polymer not only shows more efficient blue emission, but also more balanced electron and hole transport. Accordingly, both the white emission purity and the light-emitting efficiency of the light-emitting diodes based on PF-based white emissive polymer are greatly enhanced.     

Electrospray deposition of polymer thin films for organic light-emitting diodes

Electrospray process was developed for organic layer deposition onto polymer organic light-emitting diode [PLED] devices in this work. An electrospray can be used to produce nanometer-scale thin films by electric repulsion of microscale fine droplets. PLED devices made by an electrospray process were compared with spin-coated ones. The PLED device fabricated by the electrospray process showed maximum current efficiency of 24 cd/A, which was comparable with that of the spin-coating process. The electrospray process required a higher concentration of hole and electron transport materials in the inks than spin-coating processes to achieve PLED maximum performance. Photoluminescence [PL] at 407 nm was observed using electrosprayed poly(N-vinyl carbazole) films, whereas a peak at 410 nm was observed with the spin-coated ones. Similar difference in peak position was observed between aromatic and nonaromatic solvents in the spin-coating process. PLED devices made by the electrospray process showed lower current density than that of spin-coated ones. The PL peak shift and reduced current of electrosprayed films can therefore be attributed to the conformation of the polymer.     

聚合物发光电化学池研究进展

共轭聚合物是一类结合了光学、半导体电子性能和聚合物加工性能的新型材料,1995年聚合物发光电化学池出现以来就引起了广泛关注,文章在对文献结果分析的基础上总结了影响聚合物发光电化学池性能的若干因素和最新的研究进展。     

Polymer Light Emitting Diodes: Materials,Technology and Device

Polymer Light Emitting Diodes (PLEDs), the most promising name in the field of display technology has received tremendous attention from various research groups. The research on light emitting polymers are an interdisciplinary zone which has challenging investigates on materials science and engineering, physics of device architecture and technology. This review addresses the wide range of tailored polymers, evolution of LED device structure for high performance, single and multicolor polymer based LEDs. Though, polymers are possessing better efficiency and easy fabrication processes, it has very low stability and short life. This study also reviews, device degradation during device fabrication and operation.     

Metal Doping/Alloying of Cesium Lead Halide Perovskite Nanocrystals and their Applications in Light‐Emitting Diodes with Enhanced Efficiency and Stability

Metal halide perovskite nanocrystals (NCs) have demonstrated great advances for light‐emitting diodes (LEDs) applications, owing to their excellent optical, electrical properties and cost‐effective solution‐processing potentials. Tremendous progress has been made in perovskite NCs‐based LEDs during the past several years, with the external quantum efficiency (EQE) boosted to over 20 %. Recently, metal doping/alloying strategy has been explored to finely tune the optoelectronic properties and enhance material stability of perovskite NCs, leading to further improved device efficiency and stability of the obtained perovskite NCs‐based LEDs. In this review, we summarize recent progress on the metal doping/alloying of perovskite NCs and their applications in LEDs. We focus on the effects of different metal doping strategies on the structural and optoelectronic properties of the perovskite NCs. In addition, several works on high‐performance LEDs based on metal doped/alloyed perovskite NCs with different light emission colours are highlighted. Finally, we present an outlook on employing metal doping/alloying strategies to further improve the device efficiency and stability of LEDs based on perovskite NCs.