离子交换法光色玻璃工艺研究

无银碱铝硼硅酸盐玻璃，经适当的离子交换处理及热处理，可得到光色玻璃，本文提出了利用离子交换法研制光色玻璃的新方法。     

无银光致变色玻璃的光色性与相分离的关系

利用扫描电镜(SEM)、透射电镜(TEM)、X射线小角散射(SAXS)和电子探针对含铜、镉卤化合物的R_2O-A1_2O_3-B_2O_3-SiO_2系同一化学组成玻璃经不同热处理后的相分离的状况和形貌进行了观察、表面微区组分分析.发现了相分离后分散相颗粒和光敏微晶颗粒的尺寸与光色性的关系.     

宽热处理制度AgX光色玻璃的研制

本文研制了一种K2O-B2O3-Al2O3-SiO2系统AgX光色玻璃。此玻璃具有较宽的热处理制度,在610～670℃和2～8h之间进行热处理,热处理温度和时间对玻璃的光色性质影响不大。所以,可作为大面积无色差的平板光色玻璃材料来进一步研究。     

银离子交换法制备光致变色玻璃的组成研究

本文应用差热分析、透射电镜、扫描电镜和X射线能谱等实验方法，研究了R2O-Al2O3-B2O3-SiO2系统玻璃组成对其分相、离子交换以及光色性能的影响规律；确定了能获得良好光色性能的最适宜玻璃组成范围。     

有机光致变色功能涂料的研制

对有机光致变色化合物在涂料体系中的应用进行了系统的研究,确定了最佳涂料配方,研制开发了有机光致变色功能涂料,其涂层表现出明显的光致变色性,并讨论了三种不同化合物的光致变色时间与结构的关系,荧光发射光谱以及与无机稀土类光致变色化合物涂料光谱性能的异同,最后研究了涂料的稳定性能和涂层的稳定性,指出关键是化合物呈色体必须有足够的热稳定性和耐疲劳性。     

几种新型铒变色颜料的研究

用铒氧化物并添加其它稀土氧化物及过渡金属氧化物合成出了新型陶瓷光致变色颜料。在进行理论分析的基础上,通过试验得出了较佳的合成温度和配比。     

光致变色聚合物

介绍了用合成、共混等方法提高光致变色材料化学性能与物理性能的途径，比较了不同手段对终端产品质量的影响，阐明了化学合成方法在功能材料发展道路上的巨大潜力。     

常见有机光致变色体系的研究现状

介绍了常见的有机光致变色材料体系,光致变色材料在染料、民用品等方面的应用,开发有机光致变色材料作为记录介质的光盘,已成为高技术领域的一项重大课题。综述了光致变色材料在国际和国内的研究现状。光致变色材料是当前高科技领域重要的研究课题,光致变色材料在光信息存储的高科技领域、在防伪材料、装饰材料、具有广阔的应用价值和发展前景。     

Photochromic properties of polyimide and polysiloxane azopolymers

BACKROUND: One of the most important properties of the azobenzene chromophores is the photochemical trans–cis isomerization induced by UV or visible light. In azopolymers, the photoisomerization induces conformational changes in the polymer chains, which in turn lead to macroscopic variations in the chemical and physical properties of the surroundings and media. RESULTS: This work reports the photochromic behaviour and surface structuring capacity of azopolymers having rigid polyimide and flexible polysiloxane structures, respectively. These polymers have good thermostabilities, with the degradation process starting above 315 °C. The glass transition temperature of the azopolyimide is 228 °C, while that of the azopolysiloxane modified with thymine is 34 °C. CONCLUSION: The experiments show that the azobenzene groups can isomerize even in the case of the rigid polyimide, but the maximum degree of conversion to the cis isomer is less than in the case of the flexible polysiloxane. This behaviour is reversed in solution, probably due to both the thymine and azo group interactions and for conformational reasons. The azopolymers show a good surface structuring capacity. The polysiloxane is more sensitive in the case of low irradiation energy and irradiation time. By increasing the irradiation time for both polymers, the modulation depth increases and has comparable values. Copyright © 2008 Society of Chemical Industry     

光致变色化合物

介绍了当前在光致变色化合物方面的研究动向。阐述了各类光致变色化合物的特性     

Photochromic performance optimization of polyurethane microcapsules by interfacial polymerization method

Spiropyran photochromic materials have been widely studied in military camouflage, optical data storage, information encryption, and fashion ornaments. The non-photochromism and low endurance of solid spiropyran make the challenges of their application. Photochromic microcapsules with a butyl acetate solution of spiropyran as core and polyurethane as shell are synthesized via interfacial polymerization. The optimized polyurethane photochromic microcapsules are prepared with a Tween 20 concentration of 4 wt%, core–shell ratio of 16:5, and spiropyran concentration of 0.40 wt%. Polyurethane photochromic microcapsules with a mean particle diameter of 0.33 μm are obtained. The morphology shows smooth spheres, and the core–shell structure is observed. Butyl acetate in the microcapsule core does not evaporate at a temperature lower than 218.01°C as the microcapsule shell insulates heat. The polyurethane photochromic microcapsules are mixed with adhesive, thickener, and water into a paste and screen-printed on cotton fabric. The printed fabric shows the ΔE of 17.56, 11.93, and 6.96 after 80s irradiation with the xenon lamp intensity of 102, 68, and 34 mW cm⁻². The light stability of the photochromic fabric is excellent as ΔE decreases about 8.28% after 20 cycles of UV-Vis irradiation.