淀粉分子磁化修饰及其再生膜材料制备

以高直链淀粉（HS）为原料，通过“还原胺化-点击化学法”在其还原性端的潜在醛基上进行磁化分子修饰，得到具有磁性的变性淀粉（MMS），并在外磁场作用下制备再生淀粉膜。具体包括在HS分子唯一的潜在醛基上引入炔基，对四氧化三铁粒子（MNP）进行硅烷包覆得到叠氮化磁体粒子（azide-MNPs），两者经点击化学反应得到分子链末端带磁的变性淀粉。借助XRD、FTIR、NMR和MALDI-TOF MS对产物进行结构表征，结果表明，磁体粒子精准接枝到高直链淀粉分子还原末端，得到目标产物MMS。再生淀粉膜性能测试结果表明，在外磁场诱导条件下MMS逐渐趋于分子有序排列，制得的再生淀粉膜较纯CMS淀粉膜断裂伸长提升49.5%，断裂强度提升88.3%，短程有序程度提高。该文为基于外加磁场下的淀粉再生膜结构设计和力学性能调控提供了新思路。     

磷钨酸催化合成丁酮乙二醇缩酮

以磷钨酸H3 PW12 O40 为催化剂 ,通过丁酮和乙二醇反应合成丁酮乙二醇缩酮。探讨了H3 PW12 O40 对缩酮反应的催化活性 ,较系统地研究了酮醇物质的量比、催化剂用量、反应时间等因素对产品收率的影响。实验表明 :H3 PW12 O40 是合成丁酮乙二醇缩酮的良好催化剂 ,在n(酮 )∶n(醇 ) =1∶1.75 ,催化剂用量为反应物料总质量的 1.2 5 % ,环己烷为带水剂 ,反应时间 2 .0h ,反应温度 72～ 96℃的优化条件下 ,丁酮乙二醇缩酮的收率可达 5 9.5 %。     

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。     

固体推进剂燃烧机理诊断方法的研究进展

介绍和评述了诊断含能材料热分解和推进剂燃烧波结构的方法、仪器和研究进展,以及含能材料和推进剂热分解和燃烧波结构的研究结果,探讨了燃烧机理研究方法的发展方向。提出需要不断完善和更新推进剂燃烧的诊断方法,以获得更为全面的接近真实条件下推进剂燃烧的有效信息。附参考文献14篇。     

环糊精及其包合物的研究与应用

介绍了环糊精及其包合物的合成、结构、包合物形成的热力学与动力学等的研究概况，着重叙述了环糊精的包合作用与环糊精的修饰，描绘了环糊精化学的应用与发展前景。     

化学工业与循环经济

现代化学工业在很大程度上成就了目前"大规模生产和大规模消费"的发展模式,其行业性质也决定了它必将在循环经济建设中扮演重要的角色。在阐述循环经济内涵和国际经验基础上,论述了绿色化学与循环经济的关系,并提出了一些初步的发展建议。     

Study of the telomerization of dimethylaminoethyl methacrylate (DMAEMA) with mercaptoethanol. Application to the synthesis of a new macromonomer

The telomerization of dimethylaminoethyl methacrylate (DMAEMA) with mercaptoethanol initiated by 2,2′-azobisisobutyronitrile was first investigated at 70 °C and the influence of the type of solvent was studied. The results showed that well-defined telomers of DMAEMA could not be synthetized via telomerization of DMAEMA in water or water/acetonitrile mixture since the telomerization reaction is in competition with the nucleophilic addition of thiol onto the monomer. Transfer constants for mercaptoethanol in benzene and acetonitrile were determined by Mayo's and O'Brien's methods. The transfer constant obtained in acetonitrile (0,6) was higher than that obtained in benzene. This difference can be explained by the fact that the thiol was consumed by two reactions: nucleophilic addition and telomerization. The influence of solvents on the polymerization kinetics was enlightened. These results were applied to the synthesis of macromonomers of DMAEMA with isocyanatoethyl methacrylate (IEM). These macromonomers were copolymerized with styrene.     

绿色化学与环境保护

绿色化学是一门从源头上阻止污染的化学，介绍了绿色化学的一般概念及绿色化学与环境保护的关系，从化学反应条件的绿色化，化学反应途径的绿色化及产品绿色化等方面，被绿色化学对环境的友好性进行了阐述，展望了绿色化学在环境保护方面的发展前景。     

Sorption of Cr(III)‐containing cations on strongly basic anion exchangers

It is shown that strongly basic anion exchangers AV‐17 and Varion‐AD in definite conditions are able to retain Cr(III)‐containing ions from Cr(III) sulfate solution. It is found that the sorption of Cr(III)‐containing ions on the polymers is essentially dependent on the pH, temperature, and Cr(III) sulfate concentration. The maximum temperature dependence of sorption was found to be about 60°C. The sorption isotherms are well described by Langmuir's equations. The sorption kinetics is determined by the diffusion of Cr(III)‐containing ions into polymer's phase. It is assumed that the Cr(III)‐containing ions are retained through formation, in polymer's phase, of the jarosite‐type mineral compounds: R₄N[Cr₃(OH)₆(SO₄)₂], H₃O[Cr₃(OH)₆(SO₄)₂], and K[Cr₃(OH)₆(SO₄)₂]. For comparison of sorptional capacities, the sorption of Cr(III)‐containing ions was determined on different cation and anion exchangers. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 3978–3985, 2006     

Li4Ti5O12/Fe3O4复合材料的制备及其电化学性能

以醋酸锂和钛酸四正丁酯为原料,制备了纯相Li_4Ti_5O_(12),再用简单的水热法合成Li_4Ti_5O_(12)/Fe_3O_4复合材料作为锂离子电池的负极材料,通过XRD、SEM以及电池测试系统对纯相Li_4Ti_5O_(12)和Li_4Ti_5O_(12)/Fe_3O_4复合材料进行了结构、形貌及电化学性能测试。结果表明,制得的复合物具有较好的球形结构且粒径较小(200～300 nm),综合电化学性能较好。由于复合的Fe_3O_4有较高的理论容量,该Li_4Ti_5O_(12)/Fe_3O_4复合材料表现出比纯相Li_4Ti_5O_(12)大的容量,在1.0 C下循环100圈后,Li_4Ti_5O_(12)/Fe_3O_4的放电比容量仍能达到470.2 m A·h/g,同时也表现出比纯相Li_4Ti_5O_(12)更优的倍率性能。