Photochromic behavior of nanocomposite hybrid films of finely dispersed phosphotungstic acid particles into polyacrylamide

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	Photochromic behavior of nanocomposite hybrid films of finely dispersed phosphotungstic acid particles into polyacrylamide
	Feng, W ; Zhang, TR ; Liu, Y ; Lu, R ; Zhao, YY
刊名	JOURNAL OF MATERIALS SCIENCE
	2003-03-01
卷号	38 期号:5 页码:1045-1048
ISSN号	0022-2461
英文摘要	A series of nanocomposite hybrid films consisting of phosphotungstic acid (PW12) and polyacrylamide (PAM) were prepared. TEM images showed that PW12 particles with average diameter of tens of nanometer were finely dispersed in the film. FT-IR results suggested that the Keggin geometry of PW12 was still preserved inside the matrix and a charge-transfer bridge was built between PW12 and PAM through hydrogen bonds. Under UV irradiation, PW12 was reduced photochemically to yield various mixed-valency colored species ("heteropoly blues" or "heteropoly browns"). The extent of photoreduction was concerned with the concentration of PW12 and irradiation time. The presence and diffusion of oxygen played an important role in reversibility of photochromism. (C) 2003 Kluwer Academic Publishers.
语种	英语
出版者	KLUWER ACADEMIC PUBL
WOS记录号	WOS:000181011200024
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/80509]
专题	中国科学院化学研究所
通讯作者	Lu, R
作者单位	1.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Feng, W,Zhang, TR,Liu, Y,et al. Photochromic behavior of nanocomposite hybrid films of finely dispersed phosphotungstic acid particles into polyacrylamide[J]. JOURNAL OF MATERIALS SCIENCE,2003,38(5):1045-1048.
APA	Feng, W,Zhang, TR,Liu, Y,Lu, R,&Zhao, YY.(2003).Photochromic behavior of nanocomposite hybrid films of finely dispersed phosphotungstic acid particles into polyacrylamide.JOURNAL OF MATERIALS SCIENCE,38(5),1045-1048.
MLA	Feng, W,et al."Photochromic behavior of nanocomposite hybrid films of finely dispersed phosphotungstic acid particles into polyacrylamide".JOURNAL OF MATERIALS SCIENCE 38.5(2003):1045-1048.