Novel nonlinear optically active polymers with photocrosslinkable cinnamoyl groups

Müller, H.; Müller, Irene; Nuyken, Oskar; Strohriegl, Peter

doi:10.1002/marc.1992.030130508

Cited by 38 publications

(7 citation statements)

References 15 publications

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“…[32] Synthesis of CFA, CFA-Eu 3R , and PMCFA-Eu 3R Copolymer Complex Cinnamyl modified FA macromonomer (CFA) was prepared as follows. [33] Briefly, cinnamyl chloride (1.2 mol) solution in THF containing a few drops of triethylamine was slowly added into FA (1 mol) solution at 0 8C with stirring, and then kept at room temperature overnight. The CFA product was purified by washing with hydrochloride (HCl, 5 wt.-%) and sodium hydrocarboxylate (NaHCO 3 , 5 wt.-%) three times, followed by extraction from diethyl ether.…”

Section: Experimental Part Materialsmentioning

confidence: 99%

Studies on Preparation and Fluorescent Properties of a Novel Photo‐Sensitive Nanoparticle Composed of Europium Ion and Cinnamic Acid Derivative

Shi

Liu

Xiang

et al. 2009

Macro Chemistry & Physics

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A novel fluorescent and photo‐sensitive nanoparticle was self‐assembled from an europium‐based random copolymer, europium coordinated poly(methylacrylic acid)‐co‐poly(cinnamyl acrylate) (PMCFA‐Eu3+), which was synthesized from methylacrylic acid (MAA), and Eu3+‐cinnamyl acrylate derivative (CFA) by radical polymerization. DLS and TEM results indicated the formation of spherical nanoparticles with 120 nm in diameter. The PMCFA‐Eu3+ complex showed stronger fluorescence than Eu3+, indicating the effective energy transferred from the ligand to Eu3+. Moreover, the photo‐crosslinking of the cinnamate groups induced a decrease in the diameter and an increase in the fluorescent properties of the PMCFA‐Eu3+ nanoparticles. This functional nanoparticle might be useful as a carrier and a fluorescence probe in biomedical and fluorescent fields.magnified image

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Section: Experimental Part Materialsmentioning

confidence: 99%

Studies on Preparation and Fluorescent Properties of a Novel Photo‐Sensitive Nanoparticle Composed of Europium Ion and Cinnamic Acid Derivative

Shi

Liu

Xiang

et al. 2009

Macro Chemistry & Physics

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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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“…[16,17] The size of the colloids was determined from the light reflection of the crystallized colloids according to Equation (1). The refractive index used was 1.43 according to the polymers employed.…”

Section: Preparation Of Colloidsmentioning

confidence: 99%

Artificial Opals as Effect Pigments in Clear‐Coatings

Egen

Braun

Zentel

et al. 2004

Macro Materials & Eng

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Summary: In this paper, we describe the use of artificial opals from polymer beads as effect pigments in transparent industrial and automotive coatings. For this purpose, we synthesized monodisperse colloids from fluorinated methacrylates by surfactant‐free emulsion polymerization. The fluorinated monomers, in combination with crosslinking, lead to a refractive index contrast, thermal stability, and solvent resistivity necessary for use as effect pigments. After crystallization of the monodisperse polymer beads, crystal flakes with iridescent colors can be obtained. The crystal flakes can act as effect pigments in various transparent industrial and automotive coatings. Due to photonic crystal behavior of effect pigments, color flops up to 100 nm are observed.Crystal flakes of CS‐7 as effect pigments in a transparent coating. The diameter of the tube is 5 mm.magnified imageCrystal flakes of CS‐7 as effect pigments in a transparent coating. The diameter of the tube is 5 mm.

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Novel nonlinear optically active polymers with photocrosslinkable cinnamoyl groups

Cited by 38 publications

References 15 publications

Studies on Preparation and Fluorescent Properties of a Novel Photo‐Sensitive Nanoparticle Composed of Europium Ion and Cinnamic Acid Derivative

Studies on Preparation and Fluorescent Properties of a Novel Photo‐Sensitive Nanoparticle Composed of Europium Ion and Cinnamic Acid Derivative

Photocrosslinked polymer and interpenetrating polymer network for nonlinear optics

Artificial Opals as Effect Pigments in Clear‐Coatings

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