Novel phthalonitrile-terminated polyarylene ether nitrile with high glass transition temperature and enhanced thermal stability

Tong, Lifen; Jia, Kun; Liu, Xiaobo

doi:10.1016/j.matlet.2014.04.132

Cited by 52 publications

(32 citation statements)

References 11 publications

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“…It is well known that phthalonitrile shows excellent reactivity and crosslinkable property [19,20]. Therefore, by introducing the phthalonitrile in the end of the PEN main chain, the PEN-Ph integrated the excellent performances of PEN [21][22][23][24][25] (high thermal stability, superior mechanical properties as well as good workability) and the crosslinkable property of the phthalonitrile, resulting in more excellent thermal properties and mechanical properties [26,27]. Besides, the PEN-Ph also possesses partially crystalline owing to the regular structure of the part of the molecular chain.…”

Section: Introductionmentioning

confidence: 99%

A novel single-component composite based on phthalonitrile end-capped polyarylene ether nitrile: crystallization and crosslinking

2015

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A novel single-component composite based on phthalonitrile end-capped polyarylene ether nitrile (PEN-Ph) was prepared successfully via hot compression. In the PENPh system, the crosslinking reactions and crystallization exist simultaneously, and the crystals are embedded in the crosslinked PEN-Ph matrix, which can work as reinforcement. Analysis of the Non-isothermal cold crystallization kinetics of the PEN-Ph system was performed by using differential scanning calorimetry (DSC), and the activation energy of the crystallization process is obtained to be 217.5 kJ·mol −1 . The DSC and SEM analysis provide the evidence for that there exists crosslinking reactions as well as crystallization behavior. However, the crosslinking reaction with excessive speed will restrict the crystallization behavior of the PEN-Ph. Furthermore, the DMA and mechanical measurements indicate that the glass transition temperature and mechanical properties are influenced by not only the crosslinking degree but also the crystallinity. The tensile strength of the single-component composite is 111.0 MPa, increased by about 10 MPa than that of amorphous PEN-Ph sheet.

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Section: Introductionmentioning

confidence: 99%

A novel single-component composite based on phthalonitrile end-capped polyarylene ether nitrile: crystallization and crosslinking

2015

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“…For composite films with 0, 2 and 4 wt% filers, the G ′ and G '' values level off (t < 100 s) and then start to increase (t > 100 s) during the time sweep test. This increment in modulus can be attributed to the crosslink reaction of cyan groups on the PEN main chain as time increases . However, as to TiO 2 @graphene/PEN composite films with 6, 8 and 10 wt% filler, the G ′ and G ″ do not increase obviously, i.e.…”

Section: Resultsmentioning

confidence: 93%

Design of TiO₂@graphene nanosheets with rough surface and its reinforcement to polyarylene ether nitriles

Huang

Wang

Jia

et al. 2015

Polymers for Advanced Techs

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The interfacial interaction is extremely important when dealing with filler‐reinforced polymer materials. Herein, in order to improve the interfacial interaction with the polyarylene ether nitriles (PEN) matrix, a three‐dimensional rough structure was designed. First, needle‐like TiO2 nanocrystals were grown on each surface of the graphene. Morphology analysis proved that rough TiO2 nanocrystals were coated on the graphene nanosheets. Then, TiO2@graphene/PEN composites were fabricated to investigate the filler–matrix interaction. Thereafter, the different polymer chains could be interlocked by the TiO2 “needles” when the rough TiO2@graphene was embedded into the polymer resin. The surrounding PEN polymer chains (work as ropes) could tie to the “needles” (work as wood pile). That is to say, the effective polymer chain length was greatly lengthened, resulting in the improvement of interfacial interactions and mechanical properties. Most importantly, the morphology, mechanical and rheological tests of the composites also proved the improvement of interfacial interactions and mechanical properties. Copyright © 2015 John Wiley & Sons, Ltd.

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“…Therefore, the high-k material with high thermal stability has aroused the interest of researchers. It is well known that PEN is a high-performance thermoplastic engineering resin owing to the high mechanical behavior, thermal stability, easy processing, radiation resistance, and corrosion resistance [54][55][56][57][58].…”

Section: Pen Matrixmentioning

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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Novel phthalonitrile-terminated polyarylene ether nitrile with high glass transition temperature and enhanced thermal stability

Cited by 52 publications

References 11 publications

A novel single-component composite based on phthalonitrile end-capped polyarylene ether nitrile: crystallization and crosslinking

A novel single-component composite based on phthalonitrile end-capped polyarylene ether nitrile: crystallization and crosslinking

Design of TiO₂@graphene nanosheets with rough surface and its reinforcement to polyarylene ether nitriles

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

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Novel phthalonitrile-terminated polyarylene ether nitrile with high glass transition temperature and enhanced thermal stability

Cited by 52 publications

References 11 publications

A novel single-component composite based on phthalonitrile end-capped polyarylene ether nitrile: crystallization and crosslinking

A novel single-component composite based on phthalonitrile end-capped polyarylene ether nitrile: crystallization and crosslinking

Design of TiO2@graphene nanosheets with rough surface and its reinforcement to polyarylene ether nitriles

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

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Design of TiO₂@graphene nanosheets with rough surface and its reinforcement to polyarylene ether nitriles