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	Dielectric relaxation of poled polymer dcnp/pmma
	Shi, W; Fang, CS; Pan, QW; Sun, X; Gu, QT; Xu, D; Yu, JZ
刊名	Reactive & functional polymers
	2000-05-01
卷号	44期号:2页码:177-182
关键词	Poled polymer Dielectric relaxation Characteristic time Lifetime Nonlinear optical material
ISSN号	1381-5148
通讯作者	Shi, w()
英文摘要	We have prepared the polymer thin films of a 3-(1,1-dicyanothenyl)-1-phenyl-4,5-dihydro-1h-pyrazole (dchtp)/poly (methyl methacrylate) (pmma) guest-host system by spin coating. in order to investigate their temporal and temperature stability, we have measured their dielectric relaxation spectra including the frequency dependence of the real and imaginary parts of dielectric constants. the investigated frequency ranged from 50 hz to 10 mhz. the measured temperature range above the glass transition temperature t-g (95 degrees c) of the dcnp/pmma system was from 95 degrees c to 1250c. by using the adam-gibbs model, the temperature dependence of the characteristic time tau above t-g was fitted, and the values of the characteristic times tau below t-g were estimated. the lifetimes of the polymer were evaluated by the kohlrausch-williams watts (kww) empirical decay model. (c) 2000 elsevier science b.v. all rights reserved.
WOS关键词	TEMPERATURE-DEPENDENCE
WOS研究方向	Chemistry ; Engineering ; Polymer Science
WOS类目	Chemistry, Applied ; Engineering, Chemical ; Polymer Science
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000087674300008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2428844
专题	半导体研究所
通讯作者	Shi, W
作者单位	1.Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China 2.Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Shi, W,Fang, CS,Pan, QW,et al. Dielectric relaxation of poled polymer dcnp/pmma[J]. Reactive & functional polymers,2000,44(2):177-182.
APA	Shi, W.,Fang, CS.,Pan, QW.,Sun, X.,Gu, QT.,...&Yu, JZ.(2000).Dielectric relaxation of poled polymer dcnp/pmma.Reactive & functional polymers,44(2),177-182.
MLA	Shi, W,et al."Dielectric relaxation of poled polymer dcnp/pmma".Reactive & functional polymers 44.2(2000):177-182.

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