Hydrogen-bonded network: An effective approach to improve the thermal stability of organic/polymer electro-optic materials

被引：14

作者：

Deng GuoWei ^{[1
,2
]}

Bo ShuHui ^{[1
]}

Zhou TingTing ^{[1
,2
]}

Zhang Rong ^{[1
,2
]}

Liu JiaLei ^{[1
]}

Liu XinHou ^{[1
]}

Zhen Zhen ^{[1
]}

Qiu Ling ^{[1
]}

机构：

[1] Chinese Acad Sci, Key Lab Photochem Convers & Optoelect Mat, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

SCIENCE CHINA-CHEMISTRY | 2013年 / 56卷 / 02期

基金：

中国国家自然科学基金;

关键词：

electro-optic materials; hydrogen-bond; polymer blends; thin films; stability; POLYMER BLENDS; CHROMOPHORE; DESIGN;

D O I：

10.1007/s11426-012-4799-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Binary polymer blends that can form hydrogen-bond networks were prepared and used to fabricate the guest-host organic electro-optic (EO) materials. The hydrogen-bonds network in the solid films of novel guest-host organic EO materials was verified by FT-IR spectra. After corona poling, two kinds of EO films revealed the maximum EO coefficient value (r (33)) of 19.5 and 30 pm/V at the wavelength of 1310 nm. The EO activity and the order parameter of the chromophores in the poled films both indicated that the hydrogen-bond network has little impact on the motion of the chromophores while poling. These new EO films exhibited better temporal stability after 250 h at 55 and 85 A degrees C compared with the conventional guest-host systems that have the similar or higher T (g)s. Moreover, the results also indicated that polymer blends as the host of EO materials can change the dielectric strength of the materials, which directly influence the poling efficiency.

引用

页码：169 / 173

页数：5

共 17 条

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