Dielectric properties of diblock copolymers containing a polyarylene ether nitrile block and a polyarylene ether ketone block

Mao, Hongyi; Tong, Lifen; Tang, Xiaohe; Wei, Renbo; Liu, Xiaobo

doi:10.1007/s10854-017-8245-z

Cited by 14 publications

(12 citation statements)

References 31 publications

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“…A similar approach reported that PENK could be synthesized by nucleophilic aromatic substitution polymerization. [22][23][24][25] Bisphenols including BP, HQ, BPA, and PPL were used to obtain PENK copolymers with different structures and performance. In a representational reaction, 0.12 mol DCBN, 0.15 mol BP monomer, 0.03 mol DFBP, and 0.23 mol K 2 CO 3 were dissolved in a mixed solvent of toluene and NMP (the volume ratio of toluene and NMP is 1:3), with a mechanical stirrer.…”

Section: Synthesis Of the Penk Copolymersmentioning

confidence: 99%

Dielectric properties of poly(arylene ether nitrile ketone) copolymers

Mao

Tong

Tang

et al. 2018

High Performance Polymers

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A series of poly(arylene ether nitrile ketone) (PENK) random copolymers are successfully synthesized by the nucleophilic aromatic substitution polymerization of 2,6-dichlorobenzonitrile, 4,4′-difluorobenzophenone with various bisphenol monomers (4,4′-biphenol, bisphenol A, phenolphthalein, and hydroquinone). Compared with poly(arylene ether ketone), the PENK copolymers possess better solubility in polar solvents such as N-methyl-2-pyrrolidone, N, N-dimethylacetamide, N, N-dimethylformamide, dimethylsulfoxide, and so on. Because of the different molecular structures, the PENK copolymers exhibit thermal properties with their glass transition temperature ( T g) in the range of 171–237°C and 5% weight loss temperature ( T d) ranging from 409°C to 554°C. Moreover, all polymers with an intrinsic viscosity of approximately 1 dL/g show excellent film-forming properties and outstanding mechanical strength higher than 85 MPa. The temperature dependence of the dielectric constant and dielectric loss of all derived copolymers is stable before their T g. The breakdown strength of the hydroquinone-derived PENK copolymer is as high as 253 kV/mm, resulting in an energy storage density of 1.00 J/cm3. These solvent processable PENK copolymers are potential dielectric candidates for high temperature applications.

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Section: Synthesis Of the Penk Copolymersmentioning

confidence: 99%

Dielectric properties of poly(arylene ether nitrile ketone) copolymers

Mao

Tong

Tang

et al. 2018

High Performance Polymers

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“…[18][19][20][21][22] Due to these unique molecular structures, PEN offers outstanding heat resistance, chemical resistance, flame retardancy, rigidity and toughness, tunable dielectric properties and processability, as well as molecular structure designability and performance tunability. [23][24][25][26][27][28] In contrast to other polyarylether engineering plastics (such as the sulfone group and ketone group in polyethersulfone and polyetheretherketone), the cyano group hanging on one side of the main chain of PEN molecule has little influence on the molding fluidity of the polymer, which is beneficial to the molding process of PEN. 29,30 Moreover, the strong polarity of cyano group enhances the dipole-dipole interaction between the polymer molecular chains, resulting in more outstanding mechanical properties and heat resistance of PEN-based materials.…”

Section: Introductionmentioning

confidence: 99%

“…29,30 Moreover, the strong polarity of cyano group enhances the dipole-dipole interaction between the polymer molecular chains, resulting in more outstanding mechanical properties and heat resistance of PEN-based materials. 26,31,32 The above-mentioned characteristics endow porous PEN films with great application prospects in electronic devices, catalysis, adsorption, oil-water separation, aerospace and other fields. 6,[33][34][35][36][37] Bisphenol A-based PEN (BPA-PEN) copolymers obtained by the polymerization of bisphenol A (BPA) and 2,6-dichlorobenzonitrile (DCBN) possess the characteristics of simple synthesis, mild reaction conditions, low cost of raw materials, and good solubility, but the heat resistance is insufficient.…”

Section: Introductionmentioning

confidence: 99%

“…Poly(arylene ether nitrile) (PEN) is a novel type of special polymer with a large number of rigid benzene rings, flexible ether linkages and strongly polar cyano side‐groups 18–22 . Due to these unique molecular structures, PEN offers outstanding heat resistance, chemical resistance, flame retardancy, rigidity and toughness, tunable dielectric properties and processability, as well as molecular structure designability and performance tunability 23–28 . In contrast to other polyarylether engineering plastics (such as the sulfone group and ketone group in polyethersulfone and polyetheretherketone), the cyano group hanging on one side of the main chain of PEN molecule has little influence on the molding fluidity of the polymer, which is beneficial to the molding process of PEN 29,30 .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of phenolphthalein/bisphenol A‐based poly(arylene ether nitrile) copolymers: Preparation and properties of films

Zhang

Liu

2022

J of Applied Polymer Sci

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Poly(arylene ether nitrile) (PEN) is a class of high‐performance engineering plastics of poly(arylene ether) with cyano groups as side groups, which can get improved thermal, mechanical, and electrical properties through simple molecular structure design. In this work, a series of PEN (BPA/PP based PEN) copolymers were synthesized with varying amounts of phenolphthalein and bisphenol A. The influence of the copolymer molecular structure variations on the thermal, mechanical, and dielectric properties of PEN copolymer films was investigated. The results demonstrated that the BPA/PP based PEN copolymer films have great mechanical properties and low dielectric constant, as well as enhanced thermal properties. The highest 5% weight loss temperature of 494.9°C was obtained by PEN‐B7P3, while the highest glass transition temperature of 238.6°C was obtained by PEN‐B3P7. Porous BPA/PP based PEN films prepared by non‐solvent induced phase separation (NIPS) exhibited satisfactory mechanical properties and the highest tensile strength of 9.4 MPa was achieved. Moreover, the introduction of the phenolphthalein structure into the PEN molecular chain can improve the heat resistance of the PEN copolymers without deteriorating the dielectric properties, which gives the copolymers great potential as candidates for applications in flexible electronics and wireless communication.

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“…In addition, resulting from the polar -CN on the side chain, PEN shows relatively high dielectric constant. Basing on these novel properties, PEN has shown its application as dielectrics at high-temperature environments in automotive and electronic industries [39,40].…”

Section: Introductionmentioning

confidence: 99%

Polyarylene Ether Nitrile-Based High-k Composites for Dielectric Applications

Zhan

Wang

et al. 2018

International Journal of Polymer Science

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Flexible polymer-based composites exhibiting high dielectric constant as well as low dielectric loss have been intensively investigated for their potential utilization in electronics and electricity industry and energy storage. Resulting from the polar -CN on the side chain, polyarylene ether nitrile (PEN) shows relatively high dielectric constant which has been extensively investigated as one of the hot spots as dielectric materials. However, the dielectric constant of PEN is still much lower than the ceramic dielectrics such as BaTiO 3 , TiO 2 , and Al 2 O 3 . In this review, recent and in-progress advancements in the designing and preparing strategies to obtain high-k PEN-based nanocomposites are summarized. According to the types of the added fillers, the effects of organic fillers, dielectric ceramic fillers, and conductive fillers on electric properties of PEN-based composites are investigated. In addition, other factors including the structures and sizes of the additive, the compatibility between the additive agent and the PEN, and the interface which affects the dielectric properties of the obtained composite materials are investigated. Finally, challenges facing in the design of more effective strategies for the high-k PEN-based dielectric materials are discussed.

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Dielectric properties of diblock copolymers containing a polyarylene ether nitrile block and a polyarylene ether ketone block

Cited by 14 publications

References 31 publications

Dielectric properties of poly(arylene ether nitrile ketone) copolymers

Dielectric properties of poly(arylene ether nitrile ketone) copolymers

Synthesis of phenolphthalein/bisphenol A‐based poly(arylene ether nitrile) copolymers: Preparation and properties of films

Polyarylene Ether Nitrile-Based High-k Composites for Dielectric Applications

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