共面堆积的一维线性聚合酞菁

本文论述了共面堆积的一维线性聚合酞菁的合成方法、结构表征及电学性质。聚合酞菁按中心原子的化合价可分成三类 ,其中第一类的研究报道较多。聚合物的电导率主要受 3个因素的影响 :中心原子 ,桥连配体 ,外围取代基。其中对电导率影响最大的是桥连配体 ,由氰根、硫氰酸根、吡嗪、四嗪等含有π电子的化合物作为配体形成的聚合物在未掺杂时即具有较高的电导率。     

酞菁及类酞菁的结构与紫外可见光谱研究

介绍了酞菁、亚酞菁和超酞菁的典型结构及其吸收光谱,分别介绍了酞菁和亚酞菁的衍生物、缩合物的结构与最大吸收波长之间的关系以及它们潜在的应用前景,同时分析讨论了几种扩展的酞菁类似物的结构特点和它们吸收性能差的原因.     

酞菁铜的性能和应用研究进展

酞菁铜是一种重要的多功能高分子材料,其良好的光电性能,正越来越引起人们广泛的研究。介绍了酞菁铜的研究发展历史,简述了酞菁铜的结构及能级特征。详细介绍了酞菁铜的耐高温性、导电性、光电导性、光伏效应、气敏性、热电效应、电致发光性、光存贮性和催化学性等性质及其应用。在此基础上展望了酞菁铜的应用前景。     

回顾与展望:酞菁及其应用

本文介绍了酞菁化合物的简史;综述了酞菁化合物薄膜的制备方法。对酞菁化合物在光电导体,能量转换器,非线性光学,发光,气体传感器,变色和有机超晶格结构等方面的应用和存在的问题作了详细描述;并对酞菁化合物的应用前景作了展望     

酞菁树脂聚合条件的研究

利用模型化合物研究酞菁树脂的聚事条件并确定了最佳的聚合条件。根据此条件合成了酞菁树脂，用ＩＲ对单体和树脂的结构进行了表征，用ＴＧ研究了树脂的热性能，还研究了树脂的耐溶剂性。结果表明，所合成的树脂具较热和热氧稳定性，较高的成碳率和耐溶剂性能。     

酞菁铜及其衍生物在气体传感器中的应用研究进展

酞菁铜及其衍生物作为典型的气敏材料具有灵敏度高、恢复性能好、选择性好等优点,在气体传感器的很多领域具有潜在的应用价值。综述了酞菁铜及其衍生物在气体传感器中的应用现状,并展望了酞菁铜及其衍生物材料在气体传感器领域的发展趋势。     

不对称酞菁化合物的合成及研究进展

综述了近年来不对称酞菁化合物的合成进展及不对称酞菁在有机非线性光学、电荷转移、催化剂,分子整流器等领域的研究与应用。     

高纯金属酞菁的制备及其对TiO2光催化性能的影响研究

通过简易的溶液沉淀分离方法制得了纯度>97%的高纯金属酞菁的二甲基亚砜(DMSO)溶液。应用制得产物对TiO2 薄膜进行敏化,发现经酞菁铁(FePc)、酞菁钴(CoPc)、双核酞菁钴铁(CoFePc)敏化的TiO2 薄膜的光催化性能分别较未经敏化的TiO2薄膜提高67.3%、63.0%、16.1%,并通过一系列的对比实验解释了双核酞菁钴铁催化效率低于前两者的原因,为后继利用酞菁敏化TiO2 及其它光催化材料提供借鉴。     

金属酞菁的微波合成研究进展

微波合成与传统合成方法相比因具有效率高、节省能源、产品纯度高、安全等优点已被广泛应用。以金属酞菁的存在形式分类,分别从金属酞菁单体、金属酞菁聚合体、改性金属酞菁及金属酞菁复合材料4方面概述了近几年国内外对金属酞菁微波合成的研究进展,并与传统的合成方法进行了对比,展望了微波合成的发展前景。     

酞菁化合物可见光降解水中有机污染物的机理及应用

当前水环境污染已成为全球性普遍关注的重要课题,而利用光催化氧化技术处理水中难降解有机污染物的方法己经引起了国内外水处理专家的广泛关注。自1907年由A.Braun教授和T.C.Tcherniac教授第一次发现酞菁化合物以来,有关利用酞菁化合物对水中污染物进行光催化降解的研究备受瞩目。酞菁化合物由于具有18π电子体系的共轭结构,能吸收可见光区的光,因而显现出独特的光电特性。对酞菁化合物可见光催化降解水中有机污染物研究现状进行了综述,分别介绍了酞菁化合物的典型结构及其特性,并对其催化降解有机污染物反应机理进行阐述,总结了近年来酞菁化合物在降解水中有机污染物方面的应用,从环境可持续发展角度来看,具有十分重要的意义。     

The dynamic mechanical properties and fracture behaviour of phthalocyanine polymers

The dynamic mechanical properties of a series of phthalocyanine polymers with varying aliphatic chain length linking stable phthalocyanine nuclei have been studied. Dynamic shear modulus and polymer loss factor were determined using a torsion pendulum. Polymer fracture energies were also determined using both the standard compact tension specimens and double-tapered cantilever beam specimens. The results showed that both the dynamic shear modulus and the glass transition temperature increased with decreasing molecular flexibility and increasing extent of cure. The fracture energies increased with increasing molecular flexibility. It was also shown that extended thermal treatment could greatly embrittle the thermosetting polymers and hence reduce the fracture toughness, even though such treatments usually promoted crosslinking leading to higher moduli and glass transition temperatures for these polymers.     

Preparation and characterization of poly (arylene ether nitrile)/copper phthalocyanine composites via sintering treatment

In this work, copper phthalocyanine (CuPc) polymers of excellent electrical conductivity were successfully prepared via a high temperature sintering procedure, the chemical structures and morphology of obtained CuPc polymers were characterized by FTIR and SEM, respectively. Thereafter, CuPc/polyarylene nitrile ethers (PEN) composite films were prepared via solution-casting method. The obtained films show excellent thermal, mechanical and dielectric properties due to the good dispersion and compatibility of conductive CuPc polymers in PEN matrix, which was confirmed by the SEM characterization.     

高介电常数聚合物基复合材料研究进展

本文概述了目前高介电聚合物基复合材料的主要问题,论述了铁电陶瓷、导电颗粒(金属粒子、石墨、碳纳米管)改性高介电复合材料的国内外研究进展;重点介绍了酞菁铜、聚苯胺改性全有机高介电复合材料,探讨了存在的主要问题,并指出提高介电常数、储能密度,减小介电损耗,降低制备成本是未来发展的方向。     

Zinc octacarboxylic phthalocyanine/lutein dyads co-adsorbed nanocrystalline TiO2 electrode: enhancement in photovoltaic performance of dye-sensitized solar cells

A novel zinc phthalocyanine containing eight carboxyl groups was synthesized and utilized as a co-adsorbent with lutein for dye-sensitized solar cells enhance the photoelectric conversion efficiency. The effects of various phthalocyanine/lutein mole ratios on the performances of the fabricated solar cells were investigated. The results showed that zinc octacarboxylic phthalocyanine aggregation decreased with the increasing lutein/phthalocyanine mole ratios and zinc octacarboxylic phthalocyanine fluorescence was strongly quenched due to energy transfer from the phthalocyanine to the excited lutein. The photoelectric conversion efficiency reached its maximum when zinc octacarboxylic phthalocyanine/lutein mole ratio was 4:1. Moreover, the charge-transfer resistances and electron lifetimes at the TiO₂/dye/electrolyte interface also showed great dependency on the phthalocyanine/lutein mole ratios by electrochemical impedance spectroscopy. The density-functional theory calculation of zinc phthalocyanine suggests that the electronic cloud density distribution move from the phthalocyanine ring framework toward the anchoring carboxylic group and further to the conduction band of TiO₂, which results in efficient electron transfer.     

α（β）-四苯氧基酞菁钴/TiO2复合材料的原位合成、表征和光谱性质

以钛酸正丁酯、3-硝基邻苯二腈和4-硝基邻苯二腈为原料、二价钴离子为模板剂,采用原位化学合成的方法合成了均匀掺杂的1,8,15,22-四苯氧基酞菁钴/TiO2和2,9,16,23-四苯氧基酞菁钴/TiO2复合材料。通过UV-Vis、XRD、TG进行了表征,并讨论了取代基的取代位置和TiO2对酞菁Q带最大吸收波长的影响,以及酞菁对TiO2晶型和TiO2对酞菁热稳定性的影响。     

Sterically hindered phthalocyanines: solution–phase interactions with carbon monoxide

Equilibrium measurements for the interaction between various substituted phthalocyanine iron(II) and phthalocyanine (III) and carbon monoxide gas in DMSO are reported. The preparation of a novel octaphenyl-di-tert-butylphthalocyanine iron(II) is described. Variation of the phthalocyanine ring substituents, and the oxidation state of the iron metal, altered the sensitivity of the phthalocyanine towards the carbon monoxide by changing the properties of the ring, especially the tendency towards aggregation and the availability of electron density for binding purposes. Gradual spectroscopic changes were observed for the formation of the complex between carbon monoxide and the phthalocyanine derivatives. The equilibrium constant for octa-phenyl-di-tert-butylphthalocyanine iron(II) is 15170 L/mol and for phthalocyanine iron(III) is 2118 L/mol when compared to the reference phthalocyanine iron(II) value of 7447 L/mol. The results indicate that the sensitivity to carbon monoxide increases with an increase in the electron density on the phthalocyanine ring.     

Purification and characterization of phthalocyanines

The technical details of a simple train sublimation (carrier gas) system for purification of organic materials are given and the refining procedure is described. A study of the effects of purification on metal free phthalocyanine (H₂Pc), magnesium phthalocyanine (MgPc), copper phthalocyanine (CuPc), vanadyl phthalocyanine (VOPc), zinc phthalocyanine (ZnPc) and lead phthalocyanine (PbPc) was carried out by means of optical absorption, X-ray diffraction, electron paramagnetic resonance, sublimation behaviour and photovoltaic data. It was found that train sublimation improves the quality of the pigments considerably. Spectroscopic results indicate the presence of a second phase in the purified MgPc.     

α(β)-四-苯氧基金属酞菁的合成、表征和光谱性质

以3-硝基邻苯二腈和4-硝基邻苯二腈为原料分别合成了1,8,15,22-四-苯氧基酞菁铜(镍)和2,9,16,23-四-苯氧基酞菁铜(镍),通过IR和UV-Vis光谱进行了表征,并讨论了取代基的取代位置和中心离子对酞菁Q带最大吸收波长的影响。     

α(β)-四-(4-甲氧基苯氧基)酞菁的合成、表征和光谱性质

以3-(4-甲氧基苯氧基)邻苯二腈和4-(4-甲氧基苯氧基)邻苯二腈为起始原料分别合成了α-四(4-甲氧基苯氧基)酞菁和β-四(4-甲氧基苯氧基)酞菁,通过红外光谱和紫外可见光谱表征了其结构,并讨论了取代基引入的位置对酞菁紫外可见光谱和荧光光谱的影响。