Crosslinked polymer materials for nonlinear optics. 1. UV-cured acrylic monomers bearing azobenzene dyes

Boogers, Jeroen A. F.; Klaase, P. T. A.; Vlieger, J.J. de; Alkema, D. P. W.; Tinnemans, A. H. A.

doi:10.1021/ma00079a029

Cited by 43 publications

(9 citation statements)

References 9 publications

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“…For photocrosslinkable polymers, there is a great advantage because these polymers can be directly patterned by shining UV light through a mask for making channel waveguides and other integrated optical devices. Photocrosslinking for second harmonic generation (SHG) has been achieved via either a [2 + 2] cycloaddition of cinnamates,6–8 a radical polymerization or [2 + 2] cycloaddition of (meth)acrylate,9–11 a photoactivated reaction of benzophenone with butenyl side groups,12, 13 or a photocleavage of azides to nitrenes 14…”

Section: Introductionmentioning

confidence: 99%

Photocrosslinked polymer and interpenetrating polymer network for nonlinear optics

Zhang¹,

Cai

et al. 1999

J. Appl. Polym. Sci.

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ABSTRACT:Two photocrosslinkable NLO polymers of poly(glycidyl methacrylate) substituted with 4-nitro-4Ј-hydroxyl stilbene (PGMAS) and acryloyl-functionalized epoxybased polymer (PENAA) carrying 4-nitroaniline moieties were synthesized and characterized. By using the sulfonium salt cationic photoinitiator BDS ⅐ 2PF 6 which can induce cationic or/and radical polymerization, the photocrosslinking of PGMAS and the interpenetrating polymer network (IPN) formed by the photocrosslinking of PGMAS and PENAA simultaneously were reported. The poled and photocrosslinked polymer films and IPN films exhibit relatively stable second-order nonlinear optical activity. The influence of stilbene isomerization in PGMAS films with different crosslink densities on the SHG stability was also investigated.

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Section: Introductionmentioning

confidence: 99%

Photocrosslinked polymer and interpenetrating polymer network for nonlinear optics

Zhang¹,

Cai

et al. 1999

J. Appl. Polym. Sci.

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“…Two approaches to minimize the randomization have been proposed. One is to use a crosslinking method4, 5 and the other is to utilize high T g polymers such as polyimides 6–8. Polymers with NLO‐chromophores in the main chain9–11 or in the side chain12–14 were prepared and investigated.…”

Section: Introductionmentioning

confidence: 99%

Molecular design, synthesis, and electro‐optic properties of novel Y‐type polyesters with high thermal stability of second harmonic generation

Lee

Jung

Lee

2005

Polymer International

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3,4‐Di‐(2′‐hydroxyethoxy)‐4′‐nitrostilbene was prepared and condensed with terephthaloyl chloride, adipoyl chloride, and sebacoyl chloride to yield novel Y‐type polyesters containing NLO‐chromophore dioxynitrostilbenyl groups, which constituted parts of the polymer backbone. Polymers were found soluble in common organic solvents such as acetone and N,N‐dimethylformamide. They showed thermal stability up to 300 °C in thermogravimetric analysis with glass‐transition temperatures obtained from differential scanning calorimetry in the range 110–152 °C. The second harmonic generation (SHG) coefficients (d33) of poled polymer films at a 1064 cm−1 fundamental wavelength were around 3.51 × 10−8 esu. The dipole alignment exhibited high thermal stability even at 10 °C higher than the glass‐transition temperature, and there was no SHG decay below 120 °C for one of these polymers due to the partial main‐chain character of polymer structure, which was acceptable for NLO device applications. Copyright © 2005 Society of Chemical Industry

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“…To suppress this reorientation, rigid polymer backbones exhibiting high T g 's were synthesized. This can be achieved either in cross‐linked systems2–11 or with thermoplastics like polyimides12–17 or maleimide‐based polymers 18–28…”

Section: Introductionmentioning

confidence: 99%

Chromophore‐Functionalized Poly(ether sulfone)s with High Poling Stabilities of the Nonlinear Optical Effect

Ballet

Picard

Verbiest

et al. 2003

Macro Chemistry & Physics

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Summary: Nonlinear optical (NLO) polymers with high glass transition temperatures were prepared by the functionalization of poly(ether sulfone)s with hydroxyalkyl chromophores via the Mitsunobu reaction. Glass transition temperatures obtained were in the range of 158–212 °C. Thin spin‐coated films of the polymers were corona‐poled and analyzed by second‐harmonic generation measurements; second‐order susceptibility values (d33) up to 181 pm · V−1 were obtained. Poled‐order stability measurements over a period of 1 600 h showed that the percentage of the remaining NLO‐response at 125 °C was 84–96% under nitrogen and 54–76% in air.

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Crosslinked polymer materials for nonlinear optics. 1. UV-cured acrylic monomers bearing azobenzene dyes

Cited by 43 publications

References 9 publications

Photocrosslinked polymer and interpenetrating polymer network for nonlinear optics

Photocrosslinked polymer and interpenetrating polymer network for nonlinear optics

Molecular design, synthesis, and electro‐optic properties of novel Y‐type polyesters with high thermal stability of second harmonic generation

Chromophore‐Functionalized Poly(ether sulfone)s with High Poling Stabilities of the Nonlinear Optical Effect

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