𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Nonlinear optical properties of some side chain copolymers based on benzoxazole containing chromophores

✍ Scribed by R. Centore; S. Concilio; B. Panunzi; A. Sirigu; N. Tirelli

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
116 KB
Volume
37
Category
Article
ISSN
0887-624X

No coin nor oath required. For personal study only.

✦ Synopsis

Acrylate-methylmethacrylate copolymers have been synthesized for nonlinear optical applications. Acrylate monomer units are characterized by the presence in the side chain of phenylbenzoxazole groups containing electron donor-electron acceptor substituents. The phase behavior of all polymers has been investigated by DSC, X-ray diffraction and polarizing microscopy: two of them exhibit liquid crystalline behavior of smectic type. For four polymers, nonlinear optical properties have been examined by second harmonic generation measurements on thin films (Ο³ 1 m thickness) electrically poled by corona discharge. Second order susceptibility coefficients d 33 and average relaxation times Ν—Ν˜, relative to the time stability of the chromophore poling, have been measured.

πŸ“œ SIMILAR VOLUMES

Study on side-chain second-order nonline
Study on side-chain second-order nonlinear optical polyimides based on novel chromophore-containing diamines. I. Synthesis and characterization
✍ Yu Sui; Yan-Gang Liu; Jie Yin; Jian Gao; Zi-Kang Zhu; De-Yin Huang; Zong-Guang W πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 156 KB πŸ‘ 2 views

Side-chain second-order nonlinear optical polyimides were prepared from four novel chromophore-containing diamines and 4,4Ј-(hexafluoroisopropylidene) diphthalic anhydride by a traditional two-step process that included a solution polycondensation followed by a chemical imidization. The four diamine

Effect of pressure and temperature on ch
Effect of pressure and temperature on chromophore reorientation in a side-chain nonlinear optical polymer
✍ Shane J. Strutz; L. Michael Hayden πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 225 KB πŸ‘ 2 views

Second harmonic generation (SHG) was used to measure the temperature dependence of the reorientation activation volume of the side-chain copolymer poly(disperse red 1 methacrylate-co-methyl methacrylate) (DR1-MMA). The decay of the SHG signal from poled films of DR1-MMA was recorded at hydrostatic p

Preparation and properties of thermally
Preparation and properties of thermally stable copolyimides based on novel second-order nonlinear–optical chromophore containing diamines
✍ Yu Sui; Xiao-Xia Guo; Jie Yin; Yan-Gang Liu; Jian Gao; Zi-Kang Zhu; De-Yin Huang πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 159 KB πŸ‘ 2 views

Thermally stable copolyimides were prepared from two novel second-order nonlinear optical chromophores containing diamines, 4-nitro-4Ј-[N-(4,6-di-␀-aminoethylamino)-1,3,5-triazin-2-yl]aminoazobenzene (M1) and 4-nitro-4Ј-[N-(4,6-di-4-aminophenylamino)-1,3,5-triazin-2-yl]aminoazobenzene (M2); two codi