PMDA-6FHP-DR1／SiO2杂化纳米材料的结构设计和合成

以含氟的二胺5，5′—(六氟异丙基)—二—(2—氨基苯酚)及均苯四甲酸酐(PMDA)为单体，首先合成了经酰胺化的主链上带有活性羟基的含氟聚酰亚胺，再通过Mitsunobu反应将活性生色分子分散红1(DR1)共价链接到聚酰亚胺的侧链骨架上，合成了含氟聚酰亚胺．采用溶胶—凝胶(SOl—Gel)技术，并利用偶联剂γ—氨丙基三乙氧基硅烷(AFTES)制备带有发色团的和含有硅氧烷端分子的聚酰胺酸，其中的Si(OR)3基经水解、缩合后，与正硅酸乙酯(TEOS)在催化剂作用下反应，经杂化、凝胶后，得到光学透明且热稳定性高的有机／无机杂化材料．将制得的含氟聚酰亚胺／SiO2杂化材料，采用红外光谱(FT—IR)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)、示差扫描量热法(DSC)，对材料的结构、表面形貌、热性能进行了表征．     

复合金属氧化物脱硫剂还原法再生机理

利用热天平测试了ＣＯ、Ｈ２还原饱和脱硫剂微孔内Ｆｅ２（ＳＯ４）３的起始反应温度及还原速率，用Ｘ射线衍射法分析了反应中间产物及最终产物．实验结果表明，脱硫剂还原法再生的反应温度较传统热分解法低约２００℃，ＣＯ作再生脱硫剂的还原气体优于Ｈ２，ＣＯ还原脱硫剂内Ｆｅ２（ＳＯ４）３的反应级数为０．８７，活化能为１４２．９ｋＪ／ｍｏｌ．     

HNC-1新型光敏剂的合成与表征

合成了一种光敏剂2-三氯甲基-5-[β-(2-苯并呋喃)乙烯基]-1，3，4-噁二唑(HNC-1)。并用紫外光谱、红外光谱、核磁共振(氢、碳)谱，对产物进行了结构表征。     

Relationship Between Interfacial Water Layer Adhesion Loss of Silicon/Glass Fiber-Epoxy Systems: A Quantitative Study

Water at the polymer/substrate interface is often the major cause of adhesion loss in coatings, adhesives, and fiber-reinforced polymer composites. This study critically assesses the relationship between the interfacial water layer and the adhesion loss in epoxy/siliceous substrate systems. Both untreated and silane-treated Si substrates and untreated and silane-treated E-glass fibers were used. Thickness of the interfacial water layer was measured on epoxy/Si systems by Fourier transform infrared-multiple total internal reflection (FTIR-MTIR) spectroscopy. Adhesion loss of epoxy/Si systems and epoxy/E-glass fiber composites was measured by peel adhesion and short-beam shear tests, respectively. Little water accumulation at the epoxy/Si substrate interface was observed for silane-treated Si substrates, but about 10 monolayers of water accumulated at the interface between the epoxy and the untreated Si substrate following 100 h of exposure at 24 °C. More than 70% of the initial epoxy/untreated Si system peel strength was lost within 75 h of exposure, compared with 20% loss after 600 h for the silane-treated Si samples. Shear strength loss in composites made with untreated E-glass fiber was nearly twice that of composites fabricated with silane-treated fiber after 6 months of immersion in 60 °C water. Further, the silane-treated composites remained transparent, but the untreated fiber composites became opaque after water exposure. Evidence from FTIR-MTIR spectroscopy, adhesion loss, and visual observation strongly indicated that a water layer at the polymer/substrate interface is mostly responsible for the adhesion loss of epoxy/untreated siliceous substrate systems and epoxy/untreated glass fiber composites and that FTIR-MTIR is a viable technique to reliably and conveniently assess the adhesion loss attributable to water sorption at the interface.     

二氧化氯的生产和应用评述

详细评述了 2 0世纪二氧化氯的主要生产工艺和制备方法及二氧化氯作为漂白剂、消毒杀菌剂、水处理剂等在多种行业中的应用 ,分析展望了 2 1世纪二氧化氯的生产和应用前景 ,认为应在我国大力发展二氧化氯的生产并促进其应用。     

净水剂的发展和展望

详细讨论了各类净水剂的应用及局限性，提出新型净水剂的研制方向。     

绿色环保橡胶硫化配方研究

针对硫磺、促进剂M(2-巯基苯并噻唑)在橡胶制品加工中对环境的污染和对工人健康的危害，研究了硫磺、硫化剂DCP(过氧化二异丙苯)、硫化促进刑M、促进剂CZ(N-环己基-2-苯并噻唑次磺酰胺)在橡胶制品加工中的应用，从环保的角度进行了新的配方设计，并进行了性能测试。结果表明：同等务件下，生产相同的产品胶板，使用硫化剂DCP及促进剂CZ的制品综合性能要优于使用硫磺和促进刑M的制品，且有利于环保。     

两段法处理高浓度含砷废水的工艺研究

通过正交试验研究了用石灰、有机捕集沉淀剂(DTCR)两段法处理高浓度含砷废水的工艺条件，并与常规法比较了处理效果和处理费用。结果表明：用两段法处理后的废水可达标排放；污泥量大大减少，易脱水，含水率低，降低了后处理的难度和费用；污泥稳定，不产生二次污染。该法具有显著的社会效益和生态效益。     

Vinyl‐containing silicone resin as the crosslinking agent of heat‐curable silicone rubber

Heat‐curable silicone rubber (HCSR) was prepared by using vinyl‐containing silicone resin (VSR) as the crosslinking agent instead of polyvinylsilicone oil (C gum). Mechanical properties and crosslink density of the vulcanizates were measured. The results indicate that VSR is a good crosslinking agent for HCSR. The tensile strength, tearing strength, elongation at break, and hardness of the vulcanizate can reach 10.2 MPa, 29.1 kN/m, 720%, and 58 SHA, respectively. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 3123–3127, 2002; DOI 10.1002/app.10054