可聚合8-羟基喹啉衍生物的合成及高分子化

5氯-甲基-8-羟基喹啉与烯丙醇反应,得到5-(烯丙氧)甲基-8-羟基喹啉可聚合单体,进一步与苯乙烯聚合,得到含8羟-基喹啉基团的高分子。将所得的聚合物与铝离子配位得到高分子配合物(最大发射波长为512 nm)。利用红外光谱、紫外光谱、核磁共振和原子力显微镜(AFM)对配体和配合物的结构进行了表征,利用荧光光谱研究了配合物的光致发光性能。     

二茂铁型双（8-羟基喹啉）席夫碱高分子配合物的合成与表征

通过1，1’-二甲酰氯二茂铁与双（8-羟基喹啉）联苯胺席夫碱的缩聚反应，得到了二茂铁-8-羟基喹啉型缩聚物，然后与不同的金属离子配位，获得了一类新型的二茂铁8-羟基喹啉型高分子金属配位聚合物。用红外光谱（IR）、元素分析、差热分析（DSC—TGA）、荧光光谱对配体和金属配位聚合物进行表征。结果表明，配住金属参与后，提高了缩聚物的热性能。配体和配聚物的荧光性能分析表明，化舍物的发射谱出现在425～550nm之间，并且呈现三重荧光性质，在配体与金属离子配合后，其荧光强度增强。     

树枝状8-羟基喹啉锌的合成和荧光性能研究

通过收敛法合成了2种不同树枝状8-羟基喹啉配体，产物通过核磁共振（NMR）和红外（IR）进行表征；并通过荧光光谱对树枝状8-羟基喹啉配体及Zn（Ⅱ）金属配合物的性能进行研究，结果表明这些配体和Zn（Ⅱ）配合物均能溶于常见的溶剂，树枝状修饰使荧光强度变大，树枝状结构的外围官能团影响荧光性质；树枝状8-羟基喹啉锌的荧光出现明显的红移，有望在有机电致发光材料领域中得到广泛应用。     

铕-乙酰丙酮-丙烯酸配合物及其苯乙烯共聚物的研究

用三异丙氧基铕与乙酰丙酮、丙烯酸合成铕-乙酰丙酮-丙烯酸配合物[Eu（acac)2AA]，将其与苯乙烯共聚制得共聚物（Eu-CO-PS）。用元素分析、IR、UV、DMTA和荧光光谱表征其结构与性质，表明共聚物（EU-CO-PS）是发光性较强的一类新型高分子材料。     

氧桥连双核茂钛催化剂催化苯乙烯的聚合

以氧桥连双核茂钛配合物（CpTiCl2）2O和甲基铝氧烷（MAO）组成的催化体系实现苯乙烯聚合,详细考察了聚合温度,Al/Ti物质的量比,聚合时间,主催化剂浓度[Ti]等条件对聚合反应的影响。研究发现,升高温度对提高活性有利,但是会导致聚合物等规度降低。聚合产物经差示扫描量热（DSC）,红外光谱（FT-IR）和凝胶渗透...     

甲基化对8-羟基喹啉铝成膜性能的改进

利用8-羟基喹啉的5位氯甲基化的方法设计合成了可溶性的5-甲氧基-8-羟基喹啉铝配合物,并用二氧化硅溶胶成功地把该配合物制备成膜。通过红外、核磁等现代分析手段对配合物结构进行了表征,利用微光色度辐射度测量仪和扫描电镜分别对配合物的发光性质和涂层表面形貌进行表征,并对其发光性能进行了初步探讨。结果表明,5-甲氧基-8-羟基喹啉铝的发光峰波长为580nm,涂层透明且稳定。     

{[Tb(L)2(H2O)2](Hdmpy)(H2O)2｝∞/丙烯酸酯类聚氨酯稀土高分子材料的制备及性能研究

以9,10-双蒽酸(H2L)和2,6-二甲基吡啶(Hdmpy)为配体,合成了一个二维结构的稀土配合物{[Tb(L)2(H2O)2] (Hdmpy) (H2O)2｝∞;用原位聚合法将该稀土配合物与丙烯酸类聚氨酯大分子单体复合,制备出{[Tb(L)2(H2O)2](Hdmpy)(H2O)2｝∞/丙烯酸酯类聚氨酯稀土高分子材料,并研究了稀土配合物在材料中的分散及材料的热稳定性、荧光性能等.研究结果表明,配合物在稀土高分子材料中主要以200～500nm颗粒均匀分散;且该材料具有良好的热稳定性能(＞300℃),在波长372nm的激发光下,材料在440nm出现最大荧光发射峰,有望应用于发光材料领域.     

可用于纸张防火的新型高分子材料的制备与性能研究

以二苯甲酰甲烷(DBM)为第一配体,1.10-邻菲罗啉(phen)为第二配体,合成了稀土铽配合物,并通过红外、核磁、元素分析和质谱等手段对配合物进行了表征。在一定条件下,将此稀土配合物加入甲基丙烯酸(MAA)和苯乙烯(St)聚合体系中进行聚合,制备了一种高分子复合材料,并对高分子材料进行了紫外、荧光、热重(TG)分析。结果表明:这种材料的分解温度大于220℃;在350 nm和262 nm处有较强的紫外吸收;其荧光光谱发出较强的稀土Tb3+特征吸收峰。研究表明,所得的高分子复合材料具有较好的紫外吸收性和较高的热稳定性,阻燃实验证明,平均碳化度为9.7 cm,说明所得高分子复合材料具有较好的阻燃性。     

8-羟基喹啉金属配合物电致发光材料

有机/高分子电致发光器件是当前国内外平板显示器技术领域的研究热点,8-羟基喹啉金属配合物(8HQM)以其优良的电致发光性能成为研制高效率的有机/高分子电致发光器件的首选材料.针对近十年来8HQM电致发光材料的研究状况,对其电致发光机制、分子结构及发光性能的关系、分子种类及其最新研究进展,进行综述,展望了其发展趋势.     

含稀土配合物的甲基丙烯酸甲酯荧光性能研究

含稀土有机配合物的高分子材料综合了稀土材料和高分子材料的优异性能,在制备光学器件方面有广泛的应用前景.本文制备了含铕的噻吩甲酰三氟丙酮(TTA)和二苯甲酰甲烷(DBM)配合物的聚甲基丙烯酸甲酯(PMMA)体系,并考察了配合物含量、配体、小分子掺杂剂和PMMA分子量对体系荧光性能的影响.分析表明要想获得高效发光的稀土配合物高分子体系需要选用对称性较差,含氟取代基较多的配体,并找到合适的配体或小分子掺杂剂的含量,且尽量增大基体的分子量.     

凝固科学技术与材料

从凝固科学与实践发展的角度介绍了当前凝固材料体系的基本框架和凝固科学主要发展阶段的基本理论。作为材料科学与工程的基本组成，凝固科学技术正在现代科学理论的基础上针对传统材料的改性提高和新材料的发展需求，以控形、控构、控性为目标开展优质铸件的定向、晶体生长、快凝、深过冷及各种新型和超常领域凝固过程的研究，并介绍了其中某些方面和展望了可能的发展趋势。     

Development and challenges of planning and scheduling for petroleum and petrochemical production

Production planning and scheduling are becoming the core of production management, which support the decision of a petrochemical company. The optimization of production planning and scheduling is attempted by every refinery because it gains additional profit and stabilizes the daily production. The optimization problem considered in industry and academic research is of different levels of realism and complexity, thus increasing the gap. Operation research with mathematical programming is a conventional approach used to address the planning and scheduling problem. Additionally, modeling the processes, objectives, and constraints and developing the optimization algorithms are significant for industry and research. This paper introduces the perspective of production planning and scheduling from the development viewpoint.     

江澳两地高校文创设计的协同研究与商业实践

目的 探索江门世遗文化的传承、发展和转化的新思路,践行国家在《粤港澳大湾区发展规划》纲要中要求江门承担与港澳地区文化创意合作与开发任务的分工。方法 与澳门高校紧密合作,开展专业培训课程,以开平碉楼为例,从人文视角开展设计研究,梳理开平碉楼的文化脉络,把世遗文化的元素和其背后的文化融入文创产品中,提升文创产品的附加值,推动当地文创产业结构的变革。结果 两地高校构建了稳定的科研团队,开设长期有效的设计培训课程,与景区建立了研究协作关系,帮助景区构建了一套产销研的商业模式。结论 以跨区域高校合作为平台,以文创产品为抓手,依托江澳两地的资源优势,可以构建江门世遗文化全新的品牌形象,最终推动开平世遗文化的活化。     

Error and uncertainty in modeling and simulation

This article develops a general framework for identifying error and uncertainty in computational simulations that deal with the numerical solution of a set of partial differential equations (PDEs). A comprehensive, new view of the general phases of modeling and simulation is proposed, consisting of the following phases: conceptual modeling of the physical system, mathematical modeling of the conceptual model, discretization and algorithm selection for the mathematical model, computer programming of the discrete model, numerical solution of the computer program model, and representation of the numerical solution. Our view incorporates the modeling and simulation phases that are recognized in the systems engineering and operations research communities, but it adds phases that are specific to the numerical solution of PDEs. In each of these phases, general sources of uncertainty, both aleatory and epistemic, and error are identified. Our general framework is applicable to any numerical discretization procedure for solving ODEs or PDEs. To demonstrate this framework, we describe a system-level example: the flight of an unguided, rocket-boosted, aircraft-launched missile. This example is discussed in detail at each of the six phases of modeling and simulation. Two alternative models of the flight dynamics are considered, along with aleatory uncertainty of the initial mass of the missile and epistemic uncertainty in the thrust of the rocket motor. We also investigate the interaction of modeling uncertainties and numerical integration error in the solution of the ordinary differential equations for the flight dynamics.     

Density and viscosity of tetralin and trans-decalin

New measurements are reported for the density and viscosity of tetralin and trans-decalin. The density was determined from room temperature to 60°C for tetralin and to 95°C for trans-decalin. The kinematic viscosity was measured up to temperatures slightly above 100°C. Our results improve upon the values recommended by the American Petroleum Institute for these liquids.     

The Candela and Photometric and Radiometric Measurements

The national measurement system for photometric and radiometric quantities is presently based upon techniques that make these quantities traceable to a high-accuracy cryogenic radiometer. The redefinition of the candela in 1979 provided the opportunity for national measurement laboratories to base their photometric measurements on optical detector technology rather than on the emission from high-temperature blackbody optical sources. The ensuing technical developments of the past 20 years, including the significant improvements in cryogenic radiometer performance, have provided the opportunity to place the fundamental maintenance of photometric quantities upon absolute detector based technology as was allowed by the 1979 redefinition. Additionally, the development of improved photodetectors has had a significant impact on the methodology in most of the radiometric measurement areas. This paper will review the status of the NIST implementation of the technical changes mandated by the 1979 redefinition of the candela and its effect upon the maintenance and dissemination of optical radiation measurements.     

Creation and motion of dislocations and fracture in metal and silicon crystals

By making a step on one surface ( ) of a rectangular small paralellepiped copper crystal, dislocations could be created by the molecular dynamic method. The dislocation created was not a complete edge dislocation but a pair of Heidenreich-Shockley partial dislocations. Each time a dislocation was created, the stress on the surface was released. Small copper crystals having a notch were pulled (until fracture), compressed and buckled by use of the molecular dynamic method. An embedded atom potential was used to represent the interaction between atoms. Dislocations were created near the tip of the notch. A very sharp yield stress was observed. The results of high speed deformations of pure silicon small crystals using the molecular dynamics are presented. The results suggest that plastic deformation may be possible for the silicon with a high speed deformation even at room temperature. Another small size single crystal, the same size and the same surfaces, was compressed using molecular dynamic method. The surfaces are {110}, {112} and {111}. The compressed direction was [111]. It was found that silicon crystals are possible to be compressed with a high speed deformation. This may suggest that silicon may be plastically deformed with high speed deformation.     

SMC／BMC的回收与再利用

SMC／BMC废弃物对工业及环境造成了很大影响，指出了SMC／BMC回收再利用的紧迫性。通过对目前国际上SMC／BMC回收再利用的3种典型途径优缺点的对比，参照国外SMC／BMC回收再利用的先进方法，对我国SMC／BMC回收再利用提供了可行的建议．