Synthesis,characterization, and redox and electrochromic behaviors of poly(3-n-octyloxythiophene)

Poly(3-n-octyloxythiophene), a conjugated polymer, which possessed solubility in common organic solvents, was synthesized by electrochemical polymerization in the presence of lithium perchlorate as the supporting electrolyte and sodium dodecyl sulfate as the surfactant in an aqueous medium. Characterizations of the intermediate, monomer, and polymer were performed by NMR spectroscopy, Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, and gel permeation chromatography. The process of electrochemical polymerization and the electrochemical redox behaviors were investigated by cyclic voltammetry and the potentiostatic method. A poly(3-n-octyloxythiophene) film that was deposited on a platinum electrode was found to exhibit electrochromic behaviors, and it switched electrochemically between blue–green oxidized and dark red reduced states. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008     

一种基于模式搜索的大尺寸测量移站坐标转换方法

针对空间大尺寸测量的移站坐标转换，提出了最小二乘坐标转换数学模型和基于模式搜索的参数求解方法，实验证明该方法具有理论正确性和实际可行性。     

智能控制在光电跟踪控制系统中的应用

描述了仿人智能用于光电跟踪控制系统的设计思想和方法。给出了利用这一设计方法在一大型光电跟踪镜上的控制结果。     

双机同轴拖动系统扭转振动分析

介绍了两台柴油机同轴拖动一台发电机轴系扭转振动的特点，以6000kW柴油发电机组为实例，计算分析了两台柴油机的列间发火间隔角，联接相位角、功率不平衡对轴系扭转振动的影响。     

Optically tuned superconductive-dielectric resonators with whispering-gallery modes

An analytical method is presented for calculating the resonant frequency andQ-factor of a superconducting dielectric disk resonator operating in millimeter-wave regime with whispering-gallery mode. Resonant frequency shift due to the optical generation of quasi-particles in superconducting film is investigated as a function of photon flux. An optically tunable resonant frequency of about 500 MHz is estimated, and good agreement is found between numerical results and experimental ones.     

PECVD方法用于梯度薄膜材料的研究

本文研究了ＰＥＣＶＤ方法制备Ｓｉ－Ｏ－Ｍ系梯度薄膜材料，并运用计算机控制技术成功地制备了涂层折射率随膜深成正弦波形式连续变化的Ｒｕｇａｔｅ单通带滤波器样品。结果表明，采用ＰＥＣＶＤ方法可以制备性能上乘、结构复杂的梯度薄膜材料，ＰＥＣＶＤ方法在研究、开发高级光学涂层领域有着宽广的应用前景。     

饮用水氯化中氯仿形成的动力学模式

以黄腐酸（ＦＡ）为卤仿前驱物质，分别测定不同投氯量、ＴＯＣ水平、温度以及ｐＨ值对ＣＨＣｌ３形成速率的影响，确定出ＣＨＣｌ３形成的动力学模式。该模式可用于预测投氯后的管网水中ＣＨＣｌ３的形成量，以便采取必要措施保证饮用水符合国家规定ＣＨＣｌ３〈６０μｇ／Ｌ的标准。     

吸附法脱除乙烯中少量氧气的吸附剂研究

采用重量法在电子天平上研究了Ｃ２Ｈ４和Ｏ２单组份在５Ａ、１３Ｘ、丝光沸石和碳分子筛等不同吸附剂上的吸附平衡性质和扩散动力学性质。结果表明，在沸石类吸附剂上，Ｃ２Ｈ４的平衡吸附量远大于Ｏ２的平衡吸附量，Ｃ２Ｈ４的吸附扩散速率也大于Ｏ２的扩散速率；在碳分子筛吸附剂上Ｃ２Ｈ４的平衡吸附量大于Ｏ２的平衡吸附量，但Ｏ２的吸附扩散速率远大于Ｃ２Ｈ４的扩散速率，其扩散系数是Ｃ２Ｈ４的２３９倍。单柱评价结果表明，Ｃ２Ｈ４－Ｏ２混合组份通过该碳分子筛吸附剂时，Ｏ２的破点时间长，Ｃ２Ｈ４的纯度可达１００％。加压有利于选择吸附Ｏ２，而且加压吸附、常压脱附再生性能好。该碳分子筛是脱除高浓度乙烯中少量氧气的理想吸附剂。     

离子液体催化C_5馏分中二烯烃的聚合反应

合成了多种基于1-丁基-3-甲基咪唑阳离子的离子液体,并作为裂解C5馏分中混合二烯烃聚合反应的介质。考察了离子液体种类、反应温度、反应时间和添加Lew is酸对混合二烯烃聚合反应的影响。实验结果表明,以硝酸根为阴离子的离子液体对混合二烯烃的聚合反应具有一定的阻聚作用;以六氟磷酸根为阴离子的离子液体能明显促进混合二烯烃的聚合反应,提高二聚物的含量;添加Lew is酸(质量分数为1%的ZnCl2)的离子液体对混合二烯烃的聚合反应具有更明显的促进作用,其效果仅次于酸性氯铝酸类离子液体,反应温度以30℃以下为宜,温度过高将促使二聚物进一步聚合,形成三聚物乃至多聚物,降低二聚物的含量。