摘要
采用插层聚合,将甲基丙烯酸甲酯(MMA)单体插层进入红光类水滑石片层中,引发原位聚合,层间距增大至剥离,使片层与聚合物基体以纳米尺度复合,制备荧光性离散型聚甲基丙烯酸甲酯/层状无机物纳米复合材料。用红外光谱、荧光光谱、XRD、扫描电镜、原子力显微镜、热分析等对结构和性能进行了表征。结果表明,红光类水滑石片层已充分剥离分散于PMMA基质中,在365nm紫外光激发下,产生高亮度、高色纯度的红光发射,并且相较于PMMA具有更高的热稳定性。
An exfoliated red light emission polymer/layered inorganic nanocomposite （Eu-HTLc/PMMA） was synthesized through intercalation in situ polymerization. The composition and structure of the resulted nano- composite were characterized and determined by fluorescence spectrum, X-ray diffraction, TG-DSC, AFM, etc. The results indicate that the brucite-like layers of Eu-eontaining hydrotalcite-like compound （Eu-HTLc） were completely exfoliated in PMMA matrix, the nanocomposite can mainly emit characteristic fluorescence of europium ion under ultraviolet excitation at 365nm. The nanocomposite also has better thermal stability than that of the pure PMMA.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2013年第6期843-846,853,共5页
Journal of Functional Materials
基金
国家自然科学基金资助项目(60976019)
教育部高等学校博士学科点专项科研基金资助项目(20093223110002)
“闽江学者”特聘教授资助项目(闽教高〔2010〕79号)
高校科技创新团队支持计划资助项目(闽教科〔2012〕03号)
关键词
纳米复合材料
类水滑石
PMMA
插层
原位聚合
nanocomposite
fluorescent hydrotalcite-like compound
PMMA
intercalation
in situ polymerization
