Novel Chromophore‐Functionalized Poly[2‐(trifluoromethyl) adamantyl acrylate‐methyl vinyl urethane]s with High Poling Stabilities of the Nonlinear Optical Effect

SummaryA new chromophore, C1, based on a similar DA-structure of the FTC-chromophore but with a hydroxyalkyl spacer perpendicular to the direction of the dipole moment was synthesized.Both chromophores and the CLD-chromophore were used to prepare high Tg nonlinear optical vinyl polymers. The influence of the position of the spacer on the DA-system on the nonlinear optical response of the resulting polymers was investigated.

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“…Cyclohexanone was distilled prior to use. Adamantyl methacrylate and the FTC ‐ and CLD ‐chromophores were synthesized as reported elsewhere 7, 8…”

Section: Experimental Partmentioning

confidence: 99%

Influence of the Position of the Connecting Spacer of the Chromophore on the Nonlinear Optical Response

Briers

Cremer

Koeckelberghs

et al. 2007

Macromol. Rapid Commun.

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“…[1][2][3] This is mainly because of their potential applications in optical signal processing, data storage, and sensors in photonic-based industries, among other things. [4][5][6] In this respect, remarkable attention has been paid to polymers as the basic constituents of organic materials exhibiting second-order NLO properties, and polymers offer many advantages, such as considerably easy preparation, fabrication, and molding.…”

Section: Introductionmentioning

confidence: 99%

Development of polyurethanes with azo‐type chromophores for second‐order nonlinear optical applications

Tambe

Tasaganva

Jogul³

et al. 2009

J of Applied Polymer Sci

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Active nonlinear optical nitro-substituted thiazole, benzothiazole, and thiadiazole chromophores were prepared and condensed with tolylene-2,4-diisocyanate (TDI) and 4,4 0 -methylenedi(phenyl isocyanate) (MDI) to yield a series of polyurethanes. The resulting polyurethanes were characterized with Fourier transform infrared, proton nuclear magnetic resonance, and ultraviolet-visible spectroscopy, differential scanning calorimetry, thermogravimetric analysis, and gel permeation chromatography. The weight-average molecular weights of the polyurethanes ranged between 19,500 and 28,000 (weight-average molecular weight/number-average molecular weight ¼ 1.71-2.15). All the polyurethanes exhibited excellent solubility in most common organic solvents, and this indicated that these polyurethanes offered good processability. The glass-transition temperatures (T g 's) of the polyurethanes were in the range of C. Among the polyurethanes, chromophores containing the nitrothiazole moiety exhibited lower T g values in comparison with those of chromophores containing nitrobenzothiazole and nitrothiadiazole moieties. This was attributed to the small size of the nitrothiazole moiety in the polyurethane matrix. The polyurethanes containing a TDI backbone demonstrated relatively high T g values in comparison with those of the polyurethanes containing an MDI backbone. This was a result of an enhancement of the rigidity caused by the incorporation of a toluene ring into the polyurethane backbone. The second harmonic generation (SHG) coefficients of the poled polyurethane films ranged from 67.29 to 105.45 pm/V at 1064 nm. High thermal endurance of the poled dipoles was observed for all the polyurethanes. This was attributed to the formation of extensive hydrogen bonds between urethane linkages. Furthermore, none of the developed polyurethanes showed SHG decay below 150 C, and this signified their acceptability for nonlinear optical devices.

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“…[1][2][3] Polymeric materials have a strong potential for applications in telecommunications, digital signal processing, phased array radar, THz generation, etc. as active materials in photonic microdevices.…”

Section: Introductionmentioning

confidence: 99%

Electro-optic effect of a soluble nonlinear optical polyimide containing two different chromophores with different sizes in the side chain

Kim

Hoang²,

Choi³

et al. 2011

Macromol. Res.

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A new soluble and thermally stable nonlinear optical (NLO) polyimide was synthesized by adding both tricyanopyrroline (TCP)-and tricyanofuran (TCF)-based NLO chromophores into the polymer backbone. The NLO polyimide (PI-II) bearing two different chromophores with different sizes has a glass transition temperature of 146 o C and exhibits good film forming properties. The electro-optic coefficient of the film was 84 pm/V at 1.3 µm under a poling field of 80V/µm, even though PI-II has an unusually high chromophore density of approximately 20 wt% of TCP chromophores and 23 wt% of TCF chromophores. Even with a overall chromophore loading of 43 wt%, no severe aggregation effect was observed for the sample that exhibited a relatively high EO coefficient.

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Novel Chromophore‐Functionalized Poly[2‐(trifluoromethyl) adamantyl acrylate‐methyl vinyl urethane]s with High Poling Stabilities of the Nonlinear Optical Effect

Cited by 28 publications

References 28 publications

Influence of the Position of the Connecting Spacer of the Chromophore on the Nonlinear Optical Response

Influence of the Position of the Connecting Spacer of the Chromophore on the Nonlinear Optical Response

Development of polyurethanes with azo‐type chromophores for second‐order nonlinear optical applications

Electro-optic effect of a soluble nonlinear optical polyimide containing two different chromophores with different sizes in the side chain

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