Cross-linkable fluorinated poly(ether ether ketone) polymers for optical waveguide devices

Zhao, Yu; Wang, Fei; Li, Aize; Liu, Baijun; Wang, Zhongwen; Zhang, Darning; Liu, Shiyong; Yi, Maobin

doi:10.1016/j.matlet.2004.02.018

Cited by 20 publications

(7 citation statements)

References 13 publications

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“…Such fluorinated materials have also been applied as optical waveguides15 and in biomedical science 16. Cross linking of such materials leads to high absorption at visible wavelengths, increased range of refractive index tuning16 and can be used as thermally stable blue emitting materials 17…”

Section: Introductionmentioning

confidence: 99%

“…14 Such fluorinated materials have also been applied as optical waveguides 15 and in biomedical science. 16 Cross linking of such materials leads to high absorption at visible wavelengths, increased range of refractive index tuning 16 and can be used as thermally stable blue emitting materials. 17 Fluorinated polyimide/poly(propylene oxide) membranes proved to be a promising material due to their low dielectric constant, since their pores remained stable even at temperatures above 300 C. 18 Poly(vinylidene fluoride) (PVDF) is a widely known fluorinated polymer due to its high piezoelectric constant and has been used for commercial electromechanical devices such as V C 2011 Wiley Periodicals, Inc. speakers and microphones.…”

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confidence: 99%

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Synthesis, molecular, and morphological characterization of initial and modified diblock copolymers with organic acid chloride derivatives

Politakos

Weinman

Paik

et al. 2011

J. Polym. Sci. A Polym. Chem.

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Six well defined PS-b-PB 1,2 diblock copolymers (PS: polystyrene and PB: polybutadiene) with almost 100% of 1,2 microstructure for the PB segment were synthesized. Size exclusion chromatography (SEC), membrane osmometry (MO) and proton nuclear magnetic resonance spectroscopy (1 H NMR) were used for verification of the molecular characteristics and the 100%-1,2 addition for the PB blocks. Modification with heptanoyl or pentadecafluorooctanoyl chloride was accomplished via hydroboration and subsequent oxidation, leading to hydroxylated PB blocks and was verified with 1 H NMR and Fourier transform infrared (FTIR) spectroscopy. Only two samples were modified with both organic acid chloride derivatives. Structural characterization was accomplished via transmission electron mi-croscopy (TEM) and small-angle X-ray scattering (SAXS) in all cases. The self-assembly was more evident in the modified copolymers with the corresponding halides due to the increase of the molecular weight of the modified PB block. Taking into consideration the vN values in each case and comparing the results with those of PS-b-PI copolymers already reported in the literature the discrepancies with the theoretical predictions are very small or minimal. V

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Synthesis, molecular, and morphological characterization of initial and modified diblock copolymers with organic acid chloride derivatives

Politakos

Weinman

Paik

et al. 2011

J. Polym. Sci. A Polym. Chem.

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“…3,4 The introduction of fluorine element in the poly(aryl ether) can simultaneously obtain the advantages of both fluorine resin and poly(aryl ether), and this molecular modification method also further broadens the application fields of fluoropolymers. [5][6][7][8][9][10] Although FPAE has many advantages, most of them are amorphous, which leads to poor dimensional stability and thermal resistance, limiting the practical applications. Dimensional stability is an important parameter that should be considered for polymers in practical processing scenarios.…”

Section: Introductionmentioning

confidence: 99%

“…As a class of high performance polymer, fluorinated poly(aryl ether) (FPAE) have excellent thermal and mechanical properties due to the presence of a large number of aromatic structures, while the presence of ether groups increases the flexibility of the polymer molecular chain to a certain extent, making it both tough and machinable 3,4 . The introduction of fluorine element in the poly(aryl ether) can simultaneously obtain the advantages of both fluorine resin and poly(aryl ether), and this molecular modification method also further broadens the application fields of fluoropolymers 5–10 …”

Section: Introductionmentioning

confidence: 99%

Preparation of fluorinated poly(aryl ether) with high dimensional stability and high temperature resistance by photo‐thermal dual crosslinking reaction

Wang,

Yang,

Zhang

et al. 2023

Polymer Engineering & Sci

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Improving the dimensional stability is significant for fluorinated poly(aryl ether) (FPAE). In this work, zirconium tungstate (ZrW2O8) with negative thermal expansion (NTE) modified by thiol groups is successfully obtained by surface modification with 3‐(trimethoxysilyl)‐1‐propanethiol. Then, the dispersion of ZrW2O8 is improved and a certain crosslinked structure is formed by click reaction between thiols on the surface of ZrW2O8 and allyl groups on the backbone of FPAE. On this basis, the residual allyl groups on the FPAE can undergo addition reaction under heating conditions to further form crosslinked structure. Due to the introduction of photo‐thermal dual crosslinked structure, the dimensional stability of FPAE is significantly improved, and the coefficient of thermal expansion decreased by 64.3% compared to the unoptimized samples. Meanwhile, the dielectric properties are characterized with dielectric constant and dissipation factor of 3.70 and 0.008 at 1 kHz. Finally, the prepared film is used to assemble triboelectric nanogenerators, where the short‐circuit current, open‐circuit voltage and transferred charge is 3 μA, 30 V, and 10 nC, respectively. Crosslinked FPAE with high dimensional stability and high temperature resistance are successfully gained by avoiding the complexity of monomer synthesis and realizing higher performance with the same inorganic filler loading.Highlights Dual crosslinked structure is built by photo‐thermal dual crosslinking reaction. ZrW2O8 gains homogeneous dispersion in polymer matrix by photo‐crosslinking reaction. Introducing ZrW2O8 and dual crosslinked structure raises dimensional stability of film.

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“…5,6 Trifluoromethylated PAEKs were synthesized for low-k dielectrics, optical waveguide materials and gas separation membranes. [7][8][9] Azobenzene-containing PAEKs were studied for information recording materials. 10,11 In particular, improved solubility and processability are often required for the above-mentioned applications.…”

Section: Introductionmentioning

confidence: 99%

Halogenated polyaryletherketones with enhanced thermal stability

Liu

et al. 2012

High Performance Polymers

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Based on newly synthesized hydroquinone monomers, two series of halogenated polyaryletherketones, PEEKs and PEEKKs, were synthesized through nucleophilic aromatic substitution polycondensations. The chemical structures of the monomers and the polymers were carefully characterized using Fourier transform infrared and 1 H-NMR spectroscopies. Some interesting results about the relationships between the structure and properties of these polymers having comparable chemical structures were revealed for the first time. Despite the similar chemical structure of -F, -Cl and -Br substituted polyaryletherketones, they exhibited different thermal behaviors. The thermogravimetric analysis results showed that chlorinated PEEKK had the best thermal stability and its limited oxygen index (LOI) value was 42.80. The results indicated some of them will be promising high-performance polymers.

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Cross-linkable fluorinated poly(ether ether ketone) polymers for optical waveguide devices

Cited by 20 publications

References 13 publications

Synthesis, molecular, and morphological characterization of initial and modified diblock copolymers with organic acid chloride derivatives

Synthesis, molecular, and morphological characterization of initial and modified diblock copolymers with organic acid chloride derivatives

Preparation of fluorinated poly(aryl ether) with high dimensional stability and high temperature resistance by photo‐thermal dual crosslinking reaction

Halogenated polyaryletherketones with enhanced thermal stability

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