Synthesis and characterization of poly(ethylene aspartate)-metal complexes

Poly(ethylene aspartate) [PEA] was synthesized by the melt condensation of D,L-aspartic acid and ethylene glycol. PEA containing pendent amino and carbonyl groups in its repeating chain was used as the polymeric ligand for complexation with transition metal ions, viz. Co(II), Ni(II), Cu(II), Mn(II), Zn(II), Cd(II), Ca(II), Mg(II), Pb(II) and Hg(II). Complexation was found to be most effective in DMSO. The resulting polyester-metal complexes were solid coloured materials which have been characterized by IR spectroscopy, elemental analysis and magnetic susceptibility measurements. The thermal stability of the polyester-metal complexes was investigated by thermogravimetric analysis (TGA). On the basis of the physico-chemical studies, an oxygen and nitrogen coordinated structure for the polyester-metal complexes is proposed.     

薄膜干涉型光学全通滤波器的设计与分析

设计并分析了用于多信道色谱补偿的薄膜Gires-Tournois干涉仪（GTI）型光学全通滤波（OAPF），讨论了反射镜的膜层结构对器件 的群延迟谱和反射谱的影响，。以及大角度入射引起的偏分离现象和幅度畸变现象，给出了单级和多级串拉OAPF的初步设计结果。     

Mathematical modeling of falling liquid film evaporation process

A mathematical model of evaporation process from a laminar falling liquid film on a vertical plate of constant temperature is presented. The model is developed with and without interfacial shear stress due to the vapor flow at the liquid film surface. The vapor pressure drop, vapor exit velocity and cooling rate are calculated for different liquid mass flow values. It is shown that lower liquid mass flow produces higher cooling rate. The results also show that the interfacial shear stress has a considerable negative effect on the cooling rate. It is proved that there exists an optimum distance between the plates, which gives the maximum volumetric cooling rate.     

薄膜生长的计算机模拟

薄膜技术在现代科技领域中有着广泛的应用。人们对薄膜的生长过程通过理论和实验进行了深入的研究，其中计算机模拟是重要的方法，本文概述了对薄膜生长过程的实验观察结果及其理论分析，主要讨论了薄膜生长的计算机模拟中经常采用的方法-蒙特卡罗法和分子动力学方法、描述衬底上成膜粒子运动的一些模型以及在计算机模拟中需注意的一些问题，其中主要包括粒子间的相互作用，入射粒子的能量和粒子上的衬底上的扩散运动。     

化学镀Ni-P合金/TiO2复合膜的耐蚀性研究

在改进常规制备方法的基础上，提出化学镀/溶胶-凝胶复合法在碳钢表面制备TiO2复合膜的新技术。用衍射研究了复合膜的组织形态，采用环境扫描电镜（ESEM）表征了复合膜的表观和断面形貌，用极化电阻、阳极极化曲线测量等方法研究TiO2复合膜在0.5mol/L硫酸和0.5mol/L氯化钠溶液中的耐蚀性能。结果表明A3钢表面的TiO2复合膜耐蚀性能优良。     

形成前处理对提高铝箔比容的影响

阳极氧化膜是电解电容器的工作介质，其质量的优劣直接影响着铝电解电容器的性能。若在形成前将腐蚀箔在７５℃左右的Ａ溶液（〔Ａ〕≈０．２ｍｏｌ／Ｌ）中浸泡约１０ｍｉｎ，然后在５７０℃左右热处理３ｈ，阳极氧化膜的结构与性能将得到改善，铝箔比容可提高２５％～５０％，而形成电能降低３０％～５０％，从而可有效提高形成效率。     

低银医用X光胶片的研制

对几种增黑剂进行了筛选实验研究，选用了两种增黑剂组合使用，提高了遮盖力，使医用Ｘ光胶片涂布银量由原业的９ｇ／ｍ２降到了６．８ｇ／ｍ２，与美国医用Ｘ光胶片涂布银量（６．７ｇ／ｍ２）相当，照相性能不低于国产医用Ｘ光胶片。     

聚乙烯包装薄膜形变性能与微观结构的研究

采用拉伸实验，研究形变速率对聚乙烯包装薄膜力学性能的影响。采用Ｘ射线衍射方法，分析聚乙烯薄膜形变后微观结构的变化，得到了形变后材料内部的微晶尺寸和点阵畸变值。     

水包油型多彩涂料的生产及施工

介绍了水包油型多彩涂料的组成、各组份的作用、生产工艺路线和工艺参数的选择。对多彩涂料的施工机具和方法作了简单介绍。