Synthesis and properties of vinylic copolymers with fluorescent moieties as optical brighteners for liquid crystals

Grabchev, Ivo; Moneva, Ivanka

doi:10.1002/(sici)1097-4628(19991003)74:1<151::aid-app19>3.0.co;2-a

Cited by 43 publications

(14 citation statements)

References 13 publications

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“…The presence of a polymerizable group made it feasible to polymerize with some commercial monomers, allowing obtaining copolymers with an intense blue fluorescence. [26][27][28][29][30] Photostability of the polymers is one of their most important properties. To solve the problem of polymer stabilization, a number of different stabilizers have successfully been applied.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Photophysical Investigations of Novel Polymerizable Blue Emitting Fluorophores – Combination of a Hindered Amine with a Benzo[de]isoquinoline‐1,3‐dione

Bojinov

Ivanova

Simeonov

2004

Macro Chemistry & Physics

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Summary: New monomeric benzo[de]isoquinoline‐1,3‐dione blue emitting fluorophores, containing hindered amine stabilizer fragment have been synthesized under phase transfer catalysis conditions and their ability for “one‐step” optical bleaching and stabilization of poly(methyl methacrylate) has been demonstrated. During the co‐polymerization, no changes in the chromophoric system of the fluorophore occurred. The chemical bonding of the synthesized monomers in the polymer chain was confirmed spectrophotometrically. The absorption and some basic photophysical characteristics of the low and high molecular weight fluorescent brighteners have been determined. Photostability of the new monomeric fluorophores and their influence on the photostability of the blue emitting side‐group co‐polymers obtained have been established. A significant stabilizing effect against photodegradation was determined. magnified image

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Section: Introductionmentioning

confidence: 99%

Synthesis and Photophysical Investigations of Novel Polymerizable Blue Emitting Fluorophores – Combination of a Hindered Amine with a Benzo[de]isoquinoline‐1,3‐dione

Bojinov

Ivanova

Simeonov

2004

Macro Chemistry & Physics

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“…It has been shown that some polymerizable 1,8‐naphthalimide derivatives can stabilize the photodestruction of polystyrene and poly(methyl methacrylate) based copolymers 9,10. Some blue fluorescent polymers with a 1,8‐naphthalimide side‐group have been examined in a liquid crystal matrix for utilization in electro‐optical devices 11,12…”

Section: Introductionmentioning

confidence: 99%

1,8‐Naphthalimides as Blue Emitting Fluorophores for Polymer Materials

Grabchev

Petkov

Bojinov

2002

Macro Materials & Eng

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The copolymerization of 1,8‐naphthalimide derivatives (as fluorophore) with acrylonitrile has been investigated. The photophysical characteristics of monomeric and polymeric fluorophores in N,N‐dimethylformamide solution have been determined and discussed. During copolymerization, no changes in the chromophoric systems of the fluorophore occur. The influence of the studied monomeric 1,8‐naphthalimide fluorophores upon the structurally bleached polyacrylonitrile has been determined. Infrared absorption characteristics of the polymerizable 4‐alkoxy‐ and 4‐allyloxy‐N‐substituted‐1,8‐naphthalimides have been measured and discussed. The effect of the substituents upon the vibration frequencies of the carbonyl and allylic groups has been established.Blue fluorescent polyacrylonitrile copolymers with 1,8‐naphthalimides side‐group.magnified imageBlue fluorescent polyacrylonitrile copolymers with 1,8‐naphthalimides side‐group.

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“…Because of its intense fluorescence and good photostability, this type of compounds has found application in a number of areas including coloration of polymers, 7,8 laser active media, 9,10 fluorescent markers in biology, [11][12][13] anticancer agents and analgesics in medicine, 14 electroluminescent materials, [15][16][17] fluorescence switchers, 18-20 liquid crystal displays 21,22 and ion probes. Because of its intense fluorescence and good photostability, this type of compounds has found application in a number of areas including coloration of polymers, 7,8 laser active media, 9,10 fluorescent markers in biology, [11][12][13] anticancer agents and analgesics in medicine, 14 electroluminescent materials, [15][16][17] fluorescence switchers, 18-20 liquid crystal displays 21,22 and ion probes.…”

Section: Introductionmentioning

confidence: 99%

FRET versus PET: ratiometric chemosensors assembled from naphthalimide dyes and crown ethers

Panchenko

Fedorov

Федорова

et al. 2015

Phys. Chem. Chem. Phys.

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Novel bi-chromophoric naphthalimide derivatives containing benzo-15-crown-5 and N-phenyl-aza-15-crown-5 receptor moieties BNI2 and BNI3 were designed and prepared. Significant Förster resonance energy transfer (FRET) from donor (D) amido-naphthalimide to acceptor (A) amino-naphthalimide chromophores as well as photoinduced electron transfer (PET) between the N-aryl receptor and amido-naphthalimide fragment was revealed by the steady-state and time-resolved UV/Vis absorption and fluorescence spectroscopy. Upon the addition of alkaline-earth metal perchlorates to an acetonitrile solution of ligands, FRET mediated fluorescence enhancement was observed, which was a result of inhibition of the PET competitive deactivation pathway. The studied compounds provide an opportunity to register a two-channel fluorescence response upon selective excitation of either of the photoactive units and, thus, might be of interest as ratiometric probes.

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Synthesis and properties of vinylic copolymers with fluorescent moieties as optical brighteners for liquid crystals

Cited by 43 publications

References 13 publications

Synthesis and Photophysical Investigations of Novel Polymerizable Blue Emitting Fluorophores – Combination of a Hindered Amine with a Benzo[de]isoquinoline‐1,3‐dione

Synthesis and Photophysical Investigations of Novel Polymerizable Blue Emitting Fluorophores – Combination of a Hindered Amine with a Benzo[de]isoquinoline‐1,3‐dione

1,8‐Naphthalimides as Blue Emitting Fluorophores for Polymer Materials

FRET versus PET: ratiometric chemosensors assembled from naphthalimide dyes and crown ethers

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