Preparation and physical properties of polyarylene ether nitrile and polyarylene ether sulfone random copolymers

Hu, Weibin; Tong, Lifen; Tu, Ling; Wang, Yajie; Wei, Renbo; Liu, Xiaobo

doi:10.1177/0954008318785716

Cited by 13 publications

(5 citation statements)

References 29 publications

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“…In addition, a characteristic absorption peak at 1245 cm −1 was obtained indicating the formation of aryl ether (Ar–O–Ar) . The absorption peaks at 1307 cm −1 and 1142 cm −1 belong to the asymmetric stretching vibration and symmetrical stretching vibration of the sulfone group, respectively . Compared with the spectrum of sample I, a new absorption peak at 1215 cm −1 (–CF 3 ) appeared in the spectrum of the other samples, indicating the successful reaction between DCS and BPF .…”

Section: Resultsmentioning

confidence: 92%

Novel low‐dielectric‐constant fluorine‐functionalized polysulfone with outstanding comprehensive properties

Zheng

Xia

et al. 2020

Polymer International

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In this work, a series of fluorine-functionalized polysulfone (F-PSU) copolymers with intrinsic low dielectric constants (low ε) are reported, which are derived from the polycondensation reaction of 4,4 0 -dichlorophenyl sulfone with bisphenol A and bisphenol F (BPF) compounds. The resulting F-PSU copolymers show high glass transition temperatures (T g ) varying from 187 to 201°C and are thermally stable up to 500°C under an N 2 atmosphere. The introduction of BPF units into the PSU copolymers imparts enhanced hydrophobic properties to the F-PSU films with increased water contact angle values from 66.2°to 93.7°. Moreover, the dielectric constant and dielectric loss of the F-PSU (sample V) film are as low as 2.2 and 0.003 at 1 kHz, respectively. Interestingly, the dielectric properties are relatively stable to near the glass transition temperature, which is because of the existence of BPF structures in the molecular backbone. Furthermore, the F-PSU copolymers are soluble in common solvents and can be readily fabricated into flexible transparent films by the spin casting method.

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Section: Resultsmentioning

confidence: 92%

Novel low‐dielectric‐constant fluorine‐functionalized polysulfone with outstanding comprehensive properties

Zheng

Xia

et al. 2020

Polymer International

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“…PEN random copolymers exhibit excellent solubility in organic solvents of DMF and NMP. 23 In this study, solution casting method was used to prepare the PEN films. After heating and mechanical stirring, 0.2 g PEN powder was fully dissolved in 24 ml NMP.…”

Section: Preparation Of Pen Filmsmentioning

confidence: 99%

Design and properties of polyarylene ether nitrile copolymers with improved elongation at break

Liu

Bai

et al. 2021

J of Applied Polymer Sci

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Polyarylene ether nitrile (PEN) based on biphenol exhibits a high glass transition temperature of 216°C, a high tensile strength of 110 MPa, and low elongation at break of approximately 4%. A series of PEN random copolymers with improved elongation at break were synthesized using various bisphenol compounds and 2,6‐dichlorobenzonitrile (DCBN). The resulting PEN random copolymers exhibited a high glass transition temperature and thermal stability up to 513°C in a nitrogen atmosphere. PEN copolymers were amorphous and could easily be cast into transparent films with a tensile strength of 97.93–117.88 MPa and tensile modulus of 2187.98–2558.44 MPa. Most importantly, elongation at break of these PEN copolymers was higher than 13%. PEN copolymer films had a dielectric constant of 3.77–3.89 at 1 kHz and extremely low dielectric loss (<0.02). At the same time, the breakdown strength of PEN was in the range of 137.92–198.19 kV/mm and energy storage density was in the range of 0.32–0.68 J/cm3. Excellent mechanical, thermal, and dielectric properties of PEN make it possible to use them as high‐temperature resistant dielectrics to act on high‐temperature resistant insulated cables.

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“…In addition, the characteristic absorption band at 1245 cm −1 , which belongs the vibration of aryl ether (Ar-O-Ar) [37]. The absorption bands at 1300 cm −1 and 1140 cm −1 belong to the asymmetric stretching vibration and symmetrical stretching vibration of sulfone group, respectively [38]. Compared with the PES-6AF-0%, a new characteristic absorption peak at 1170 cm −1 (-CF 3 ) in the spectrum of other copolymers appeared, which indicated the successful reaction between DCS and 6AF [39].…”

Section: Characterization Of Pes and Pes-6af Polymersmentioning

confidence: 99%

Dielectric properties of polyethersulfone copolymers containing bisphenol S and six fluorine hexafluorobisphenolA (6AF) segments

Xia

Zheng

et al. 2020

J Polym Res

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In this study, a series of fluorinated polyethersulfone (PES-6AF) copolymers with intrinsic low-dielectric-constants are prepared by the introduction of fluorine-containing group, which are derived from the polycondensation reaction of 4,4′-dichlorophenyl sulfone (DCS), bisphenol S (BPS) and six fluorine hexafluorobisphenolA (6AF) compounds by nucleophilic aromatic substitution. Different proportions of PES-6AF copolymers show high glass transition temperatures (T g) ranging from 206°C to 230°C, and the thermal decomposition temperatures of PES-6AF copolymers are up to 500°C under N 2 atmospheres. The PES-6AF copolymers display outstanding tensile strength (62-69 MPa). Added different proportions of 6AF into the PES-6AF copolymers could improve dielectric property and decrease dielectric constant (k) from 3.6 to 2.5 at 1 kHz. In addition, the dielectric properties were found to be relatively stable until the T g , it is because that the 6AF units were existed in the molecular backbone. Furthermore, the PES-6AF copolymers were soluble in many common solvents and could be made the molten films using DMF as solvent.

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Preparation and physical properties of polyarylene ether nitrile and polyarylene ether sulfone random copolymers

Cited by 13 publications

References 29 publications

Novel low‐dielectric‐constant fluorine‐functionalized polysulfone with outstanding comprehensive properties

Novel low‐dielectric‐constant fluorine‐functionalized polysulfone with outstanding comprehensive properties

Design and properties of polyarylene ether nitrile copolymers with improved elongation at break

Dielectric properties of polyethersulfone copolymers containing bisphenol S and six fluorine hexafluorobisphenolA (6AF) segments

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