Preparation of a new polymer‐dispersed liquid crystal film by using phthalocyanine‐functional photocurable copolymer

Mert, Humeyra; Dinçer, Hatice; Çalışkan, Emel; Şen, Betül Nur; Gürsel, Yeşim Hepuzer

doi:10.1002/app.41574

Cited by 12 publications

(3 citation statements)

References 56 publications

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“…A double click reaction was used to incorporate phthalocyanine ZnPc31 and 4-ethynyl-N,Ndimethylaniline in the azido-functional poly(methyl methacrylate-co-2-(2-bromoisobutyryloxy)ethyl methacrylate) copolymer (PMMEM) (Scheme 18) [37]. The obtained copolymer PMMEM-ZnPc31-EDMA was crosslinked in the presence of the liquid crystal mesogen 4'-(octyloxy)-4-biphenylcarbonitrile by ultraviolet irradiation using benzophenone as initiator and ethylene glycol dimethacrylate as difunctional crosslinker.…”

Section: Scheme 16 Synthesis Of Cupc30 With Different Chain Lengths mentioning

confidence: 99%

Azides and Porphyrinoids: Synthetic Approaches and Applications. Part 2—Azides, Phthalocyanines, Subphthalocyanines and Porphyrazines

et al. 2020

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The reaction between organic azides and alkyne derivatives via the Cu(I)-catalyzed azide–alkyne cycloaddition (CuAAC) is an efficient strategy to combine phthalocyanines and analogues with different materials. As examples of such materials, it can be considered the following ones: graphene oxide, carbon nanotubes, silica nanoparticles, gold nanoparticles, and quantum dots. This approach is also being relevant to conjugate phthalocyanines with carbohydrates and to obtain new sophisticated molecules; in such way, new systems with significant potential applications become available. This review highlights recent developments on the synthesis of phthalocyanine, subphthalocyanine, and porphyrazine derivatives where CuAAC reactions are the key synthetic step.

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Section: Scheme 16 Synthesis Of Cupc30 With Different Chain Lengths mentioning

confidence: 99%

Azides and Porphyrinoids: Synthetic Approaches and Applications. Part 2—Azides, Phthalocyanines, Subphthalocyanines and Porphyrazines

et al. 2020

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“…This paper proposed a fiber-optic voltage sensor using the electro-optical characteristics of polymer dispersed liquid crystal (PDLC) (Fuh et al, 2015; Mert et al, 2015; Wei et al, 2015) and fiber loop cavity ring-down (FLCRD) technology to improve sensitivity and accuracy of voltage measurement. This paper measured and analyzed the electro-optical characteristics of PDLC and establishes relation between the transmittivity and the applied voltage.…”

Section: Introductionmentioning

confidence: 99%

A voltage measurement system based on fiber loop cavity ring-down technology using polymer dispersed liquid crystal film as sensing device

Wang

Zhao

et al. 2017

Transactions of the Institute of Measurement and Control

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This paper proposed and experimentally demonstrated a high-resolution voltage measurement method based on fiber loop cavity ring-down (FLCRD) technology and polymer dispersed liquid crystal (PDLC) film as the sensing device. In this measurement system, PDLC is made into a film structure used as sensing device to measure external voltage changes, and the experiments were carried out to measure the relationships between light transmittivity of PDLC film and the external voltage. The FLCRD system with optimized structure parameters is obtained by numerical simulation, and the splitting ratios of fiber couplers used in the sensing system are optimized, and an erbium-doped fiber amplifier is used to compensate system signal loss, which has made a lot of improvement in the signal noise ratio and sensitivity. Finally, the experimental results show that the resolution of voltage measurement is 0.29 mV (0.0015%) in the range of 0-60V, which improved the resolution by 10 times compared with the current methods.

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“…C NMR (101 MHz, CDCl 3 ) δ 159.9, 145.2, 132.6, 131.2, 128.3, 127.0, 119.1, 115.1, 110.0, 68.2, 31.9, 29.4, 29.2(9), 29.2(8), 26.1, 22.7, 14.2.The spectral data were consistent with those previously reported 64. …”

mentioning

confidence: 99%

Unsymmetrical Aryl(2,4,6-trimethoxyphenyl)iodonium Salts: One-Pot Synthesis, Scope, Stability, and Synthetic Studies

et al. 2016

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Diaryliodonium salts have recently attracted significant attention as metal-free-arylation reagents in organic synthesis, and efficient access to these salts is critical for advancement of their use in reaction discovery and development. The trimethoxybenzene-derived auxiliary is a promising component of unsymmetrical variants, yet access remains limited. Here, a one-pot synthesis of aryl(2,4,6-trimethoxyphenyl)iodonium salts from aryl iodides, m-CPBA, p-toluenesulfonic acid, and trimethoxybenzene is described. Optimization of the reaction conditions for this one-pot synthesis was enabled by the method of multivariate analysis. The reaction is fast (<1 h), provides a high yield of product (>85% average), and has broad substrate scope (>25 examples) including elaborate aryl iodides. The utility of these reagents is demonstrated in moderate to high yielding arylation reactions with C-, N-, O-, and S-nucleophiles including the synthesis of a liquid crystal molecule.

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Preparation of a new polymer‐dispersed liquid crystal film by using phthalocyanine‐functional photocurable copolymer

Cited by 12 publications

References 56 publications

Azides and Porphyrinoids: Synthetic Approaches and Applications. Part 2—Azides, Phthalocyanines, Subphthalocyanines and Porphyrazines

Azides and Porphyrinoids: Synthetic Approaches and Applications. Part 2—Azides, Phthalocyanines, Subphthalocyanines and Porphyrazines

A voltage measurement system based on fiber loop cavity ring-down technology using polymer dispersed liquid crystal film as sensing device

Unsymmetrical Aryl(2,4,6-trimethoxyphenyl)iodonium Salts: One-Pot Synthesis, Scope, Stability, and Synthetic Studies

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