Polymethaerylate copolymers containing 4,5-dicyanoimidazole-based chromophores and their nonlinear optical behavior

被引：18

作者：

Carella, A

Centore, R

Riccio, P

Sirigu, A

Quatela, A

Palazzesi, C

Casalboni, M

机构：

[1] Univ Naples Federico II, Dipartimento Chim, I-80126 Naples, Italy

[2] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2005年 / 206卷 / 14期

关键词：

imidazole; nonlinear; optics; polymers; SHG; synthesis;

D O I：

10.1002/macp.200500112

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two series of methacrylate copolymers were prepared, based on two new nonlinear optically (NLO) active chromophores 2-[4-(N-methacryloyloxyethyl-N-methylamino)phenylazo]-4,5-dicyanoimidazole (chromophore A) and 1-ethyl-2-[4-(N-methaeryloyloxyethyl-N-methylamino)phenylazo]-4,5-dicyanoimidazole (chromophore B). Second order NLO properties of the two series of copolymers (A or B as monomer and methyl methacrylate as the comonomer) were investigated by SHG procedures at the fundamental wavelength 1368 nm; d(33) values in the range 0.2-3.3 pm (.) V-1 were obtained, depending on the chromophore and on its molar content. The dependence of d(33) on the molar content of chromophore was investigated in the two cases.

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页码：1399 / 1404

页数：6

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