Optically transparent polyamides bearing phenoxyl, diphenylamine and fluorene units with high-contrast of electrochromic and electrofluorescent behaviors

Meng, Shiyao; Sun, Ningwei; Su, Kaixin; Feng, Feiling; Wang, Shuli; Wang, Daming; Zhao, Xiaogang; Zhou, Hongwei; Chen, Chunhai

doi:10.1016/j.polymer.2017.03.066

Cited by 30 publications

(21 citation statements)

References 44 publications

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“…The quantum yield of the solid films of different aramids is in the range 0.17%–0.34%. Charge transfer between aromatic polyamides is usually strong . To the best of our knowledge, no solid‐state quantum yields have been reported for wholly aromatic polyamides.…”

Section: Resultsmentioning

confidence: 94%

“…A silk‐like fiber was obtained via wet spinning of a 15 wt % solution to water. The film preparation was modified according to literatures . The film was prepared via casting from a 10 wt % homogenous solution of the polymer to the glass plate or a Teflon mold, placed at ambient temperature for evaporation of the solvent.…”

Section: Methodsmentioning

confidence: 99%

“…The monomers can be easily obtained, with 2,6‐naphthalic acid, ODA, and MPD commercially available. Compared with most of the reported modified aramids in the literatures, the aramids described in this article are quite easily obtained with only two steps, and the process is cost‐effective. The copolyamides are soluble in some organic solvents, and can be easily processed into films, fibers, and tubes.…”

Section: Introductionmentioning

confidence: 96%

“…prepared copolyamides with improved solubility and good thermal stability by utilizing a four‐component copolymerization process, but the processing and mechanical strength of the polymer was not reported . On the other hand, extended applications of the high‐performance aramids in technological fields, such as photoluminescent, ion‐exchange, reverse osmosis, and optically active materials have been studied by many scientists …”

Section: Introductionmentioning

confidence: 99%

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Facile preparation and characterization of soluble aramid

Zhou¹,

Wang

Zhang³

et al. 2018

J of Applied Polymer Sci

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It remains a problem to prepare cost-effective aramid with good solubility via a simple method since the commercialization of aromatic polyamides such as Kevlar and Nomex by DuPont in 1960s. Herein, we report the facile preparation and properties of an aromatic polyamide copolymerized by 2,6-naphthalene dichloride (26N-COCl), 4,4 0 -oxydianiline, and m-phenylenediamine. The synthetic route is very facile and cost-effective. The modified aramids possess excellent comprehensive properties. The polymers are soluble in some organics. Their thermal stabilities are excellent, with 5% weight loss temperatures (T d,5% 's) in air higher than 460 8C and glass transition temperatures (T g 's) higher than 280 8C. These polymers are easily processed into films, fibers, and tubes. The products exhibit high strength. For example, the films have excellent mechanical strength, with a tensile strength up to 139 MPa, a tensile modulus up to 3.45 GPa, and an elongation of 11%. The films are also transparent and fluorescent. The overall properties are better than those of the commercial Nomex. The facilely prepared aramids with good solubility are very promising for commercial use.

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Section: Resultsmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Facile preparation and characterization of soluble aramid

Zhou¹,

Wang

Zhang³

et al. 2018

J of Applied Polymer Sci

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“…The TAA and derivatives were prepared according to the literature 39 . The synthetic routes are shown in Figure S16 .…”

Section: Methodsmentioning

confidence: 99%

Organic-inorganic hybrid electrochromic materials, polysilsesquioxanes containing triarylamine, changing color from colorless to blue

Wang

Cai

et al. 2017

Sci Rep

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Four kinds of soluble monomers, containing triarylamine (TAA) group with reactive siloxane group, were synthesized under mild conditions via the reaction between 3-(triethoxysilyl)propyl isocyanate (TEOSPIC) and four TAA derivatives, respectively. Then the corresponding colorless organic-inorganic hybrid materials (PSSOs) were derived from the hydrolytic condensation of the monomers. PSSOs revealed good solubility in polar solvents on account of the effect of propeller-like TAA unit as well as the auxo-action effect of the flexible chain within the monomers. The structural characteristics of these PSSOs were identified by 1H NMR, 29Si NMR, FT-IR spectroscopies and X-ray diffraction (XRD). The morphology, dynamic changes of the transmittance and current before and after electro-oxidizing reaction were studied, and didn’t show significant change suggesting good stability of the PSSOs. Meanwhile, these PSSOs performed high contrast of optical transmittance change up to 84% with the highest coloration efficiency to 241 cm2·C−1. Furthermore, electrofluorescent properties of PSSOs were investigated with high-contrast.

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TA ‐Based Electrochromic Polyimides and Polyamides

2021

Organic Electronics for Electrochromic Materials and Devices

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Optically transparent polyamides bearing phenoxyl, diphenylamine and fluorene units with high-contrast of electrochromic and electrofluorescent behaviors

Cited by 30 publications

References 44 publications

Facile preparation and characterization of soluble aramid

Facile preparation and characterization of soluble aramid

Organic-inorganic hybrid electrochromic materials, polysilsesquioxanes containing triarylamine, changing color from colorless to blue

TA ‐Based Electrochromic Polyimides and Polyamides

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