摘要
采用预聚法和溶胀法制备了具备光学透明性和可加工性的半导体纳米复合材料ZnS/PMMA.用透射电镜(TEM)观察了ZnS纳米粒子在聚合物基体中的形貌.结果表明,基体中ZnS为六方晶型.比较了分别以含锌微凝胶(ZnP)和ZnCl2为Zn2+源时,ZnS在基体中的生长情况.紫外吸收和荧光光谱表明,掺杂了ZnS后的PMMA基体在280nm处出现了一个新的吸收峰和强的荧光峰.
Nanocomposite materials have many peculiar optical characteristics and quantum effect of the different nanoparticals in the matrix, such as optical amplification, photo absorbance fluorescence and nonlinear optical phenomena. And all of these materials have already exhibited immense application foreground, especially in the fields of optical apparatus and optical waveguide. Here the cubic nanocomposite materials ZnS/ PMMA with good optical properties and machinability were synthesized by two methods of propolymerizing and swelling. TEM image was used to study ZnS nanoparticles in the PMMA matrix. Electron diffraction results show that the ZnS nanoparticles have a hexagonal structure. The ZnS nanoparticles growing process in the PMMA matrix at respective Zn^2＋ source of microgel （ZnP） and ZnCl2 was observed. The effect at different time on the preparation of these samples was measured by using UV-Vis absorption and Fluorescence. The spectra show that PMMA have a new absorption peak at about 280 nm and strong fluorescence phenomenon when it mixed with ZnS.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第3期527-530,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:20374058)
国家'八六三'计划项目(批准号:2003AA305320)资助.
关键词
硫化锌
聚甲基丙烯酸甲酯
纳米复合材料
Zinc sulfide
Poly （ methyl methacrylate）
Nanocomposite material
