泽泻对大鼠慢性肾功能衰竭的影响

通过化学方法提取泽泻的有效成份三萜类化合物(泽泻醇A、泽泻醇B、乙酸泽泻醇A酯、乙酸泽泻醇B酯)，它具有利尿、消尿蛋白的功能，加入大黄，附子等药物，可用以治疗慢性肾功能衰竭。     

MAPCATI改性环氧丙烯酸双酯的合成及其紫外光固化涂料

采用自制个甲基丙烯酰氧β－丙氧甲酰氨基甲苯２－异氰酸酯（简称ＭＡＰＣＡＴＩ）中的异氰酸基与自制环氧丙烯酸双酯中羟基上的氢反应，制得了改性树脂；并以此为基料配成紫外光固化涂料。所得涂层性能优良，有应用前景。     

酸性介质中有机含氮化合物抑制铁腐蚀的结构效应

用电化学极化电阻法研究了某些有机含氮化合物抑制铁腐蚀的结构效应。根据缓蚀剂分子中取代基的类型、数目和空间取向，以及位体Ｎ上电子与铁空ｄ轨道形成位键的强弱，解释了有机含氮化合物的结构对其缓蚀效率的影响。     

Anion-exchangeable inorganic-organic hybrid materials synthesized without using templates

Inorganic-organic hybrid materials have been obtained at room temperature in aqueous solution without using the templates of surfactants. The materials are carefully characterized by anion-exchange measurement, elements analysis, X-ray diffraction, and infrared spectroscopy. Notably, the anion-exchange capacity of the samples (3.9mmol.g^-1) is even higher than anion-exchangeable resins. Interestingly, both small and large anions could be easily exchanged into the samples due to the plasticity of the samples, along with the phase transition.     

半导体光电子材料中的缺陷

介绍近年来在Ⅲ族氮化物和Ⅲ-Ⅴ化合物缺陷等方面的一些研究进展。并着重展示对Ⅲ族氮化物中黄色发光带、纳米管、穿透位错、龟裂和沉积物,以及Ⅲ-Ⅴ化合物Fe杂质和DX中心能级精细结构等研究的结果。     

Thermodynamic characterization of two novel spin-crossover complexes

Spin-crossover complexes are of great interest to the scientists because of their potential application in molecular-based electronic devices. Some octahedral metal compounds with 3dn (4 ≤ n ≤ 7) configuration can induce a spin state conversion through a fine tuning condition (temperature, pressure, light irradiation, etc.). If the conversion occurs reversibly with a hystersis loop and color change, it will make the system possessing memory effect. The memory effect can be magnified and the …     

新型刀具涂层Ti-Si-N复合膜的制备、性能及应用

现代金属切削对刀具有很高的技术要求,涂层刀具是20世纪70年代以后出现的一种新型刀具材料,是刀具发展中的一项重要突破.涂层刀具是在一些韧性较好的硬质合金或高速钢刀具基体上涂覆一层耐磨性高的难熔金属化合物而制成的,有效地解决了刀具材料的硬度、耐磨与强度、韧性之间的矛盾.     

β-环糊精与化合物RSA包合物的制备及表征

将17α-羟基孕甾-4-烯-3，20-二酮-21-醋酸酯（RSA）和伊环糊精（β-CD）经超声波处理40min，再于120r／min，28℃振荡处理12h，以制取包舍物．极性差异、FTIR、TG和DSC分析证实了β-CD和RSA通过以上实验条件形成了β-CD—RSA包合物，而且β-CD—RSA包合物的紫外吸收特征与化舍物RSA一致．     

环氧丙烯酸酯/蒙脱土插层材料的研究

通过溶液的方法实现了环氧丙烯酸酯和蒙脱土的插层,并在紫外光作用下利用光固化反应制备了环氧丙烯酸酯/蒙脱土纳米复合材料.利用X-衍射对材料样品进行了插层表征,对有机蒙脱土的流变性进行了测试,对样品的力学性能(拉伸强度?冲击强度)进行了测试.结果表明:有机化的蒙脱土具有一定的触变性;插层后有机蒙脱土的片层被撑开剥离;少量的有机化蒙脱土的加入可较大提高材料的性能.     

Preparation of polypropylene/montmorillonite nanocomposites by intercalative polymerization： Effect of in situ polymer matrix functionalization on the stability of the nanocomposite structure

The copolymerization of propylene and 5-hexenyl-9-borabicyclo[3.3.1]nonane (5-hexenyl-9-BBN) has been conducted with an MgCl2/TiCl4 catalyst intercalated in an organically modified montmorillonite (OMMT) with triethylaluminum (AlEt3) cocatalyst and diphenyldimethoxysilane (DDS) external donor. This polymerization process simultaneously results in both the exfoliation of MMT layers to realize the preparation of polypropylene (PP)/MMT nanocomposites and the implantation of reactive borane groups in the formed PP matrix. The polymer-borne borane groups have been able to undergo an effi-cient hydrolysis process under very mild reaction conditions (40℃, 3 h, in THF), introducing hydroxy groups into PP without sacrificing the polymerization-formed nanocomposite structure (the exfoliation of MMT). The resultant hydroxyl-functionalized PP/MMT nanocomposites exhibit enhanced structural stability against processing compared with those based on unfunctionalized PP matrix.