Synthesis and thermal properties of the thermosetting resin based on cyano functionalized benzoxazine

Cao, Guoping; Chen, W.J.; Liu, Xiaobo

doi:10.1016/j.polymdegradstab.2007.10.002

Cited by 87 publications

(27 citation statements)

References 19 publications

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“…During the curing procedure, the polymerizable cyano groups in the benzoxazine could be further transformed into triazine rings through polymerization reactions, which formed an extra, extended 2D framework to further increase the cross- linking density of PBZ. 27 Therefore, such a developed 3D framework of PBZ ensures its excellent thermal stability and high char yield after carbonization and activation at high temperature, as shown in Table 1. For the purpose of creating a certain amount of mesopores, the soft-templating agent (surfactant F127) dissolved in ethanol was introduced into a benzoxazine solution to obtain a mesotructured surfactant/ polymer composite via the solvent-evaporation-induced selfassembly method.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen-Enriched Hierarchically Porous Carbons Prepared from Polybenzoxazine for High-Performance Supercapacitors

Wan

Wang

Xie

et al. 2014

ACS Appl. Mater. Interfaces

195

127

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Nitrogen-enriched hierarchically porous carbons (HPCs) were synthesized from a novel nitrile-functionalized benzoxazine based on benzoxazine chemistry using a soft-templating method and a potassium hydroxide (KOH) chemical activation method and used as electrode materials for supercapacitors. The textural and chemical properties could be easily tuned by adding a soft template and changing the activation temperature. The introduction of the soft-templating agent (surfactant F127) resulted in the formation of mesopores, which facilitated fast ionic diffusion and reduced the internal resistance. The micropores of HPCs were extensively developed by KOH activation to provide large electrochemical double-layer capacitance. As the activation temperature increased from 600 to 800 °C, the specific surface area of nitrogen-enriched carbons increased dramatically, micropores were enlarged, and more meso/macropores were developed, but the nitrogen and oxygen content decreased, which affected the electrochemical performance. The sample HPC-800 activated at 800 °C possesses a high specific surface area (1555.4 m(2) g(-1)), high oxygen (10.61 wt %) and nitrogen (3.64 wt %) contents, a hierarchical pore structure, a high graphitization degree, and good electrical conductivity. It shows great pseudocapacitance and the largest specific capacitance of 641.6 F g(-1) at a current density of 1 A g(-1) in a 6 mol L(-1) KOH aqueous electrolyte when measured in a three-electrode system. Furthermore, the HPC-800 electrode exhibits excellent rate capability (443.0 F g(-1) remained at 40 A g(-1)) and good cycling stability (94.3% capacitance retention over 5000 cycles).

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Section: Resultsmentioning

confidence: 99%

Nitrogen-Enriched Hierarchically Porous Carbons Prepared from Polybenzoxazine for High-Performance Supercapacitors

Wan

Wang

Xie

et al. 2014

ACS Appl. Mater. Interfaces

195

127

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“…may contribute to C-O stretching vibration appearing at 1227 cm À1 in THFS. The band at 1028 cm À1 is due to C-O-C stretch [28], which is possibly attributed to the bridge bond of phenolic resin as shown in Fig. 3.…”

Section: Ftir Analysis Of 300df Thfs Thfr 300df-800 Thfs-800 and mentioning

confidence: 93%

Gradient separation of ⩾300°C distillate from low-temperature coal tar based on formaldehyde reactions

Sun

et al. 2015

Fuel

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“…DDS was purchased from SC Dongcai Chemicals (Mianyang, China). BDB was prepared according to the reference [6] . APN was synthesized from 4-nitrophthalonitrile and 3-aminophenol according to the published literature with minor modifications [7] .…”

Section: Methodsmentioning

confidence: 99%

“…Phthalonitrile-containing amine (APN) and one nitrile side chain-containing diamine (BDB) were used in the polymerization process of epoxy resin as comonomer and coreactive curing agents. Importantly, the functional groups, reactive nitrile groups, incorporated into the BDB [6] or APN [7] , have a great tendency to improve the thermal stability of epoxy resin. Meanwhile, APN exhibits self-promoted curing behavior in the absence of curing agents and the APN/ER system has the double curing reactions.…”

Section: Introductionmentioning

confidence: 99%

Effect of functional nitrile groups on curing behaviors and thermal properties of epoxy resins as advanced matrix materials

Zhang

Chen

Wei

et al. 2012

Science and Engineering of Composite Materials

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This paper reports the preparation of the amine/ epoxy blends with various amines such as 4,4 ′ -diaminodiphenylsulfone (DDS), one nitrile side chain-containing diamine (BDB), and phthalonitrile-containing amine (APN). Differential scanning calorimetry (DSC), rheological analysis, and thermal gravimetric analysis (TGA) were used to evaluate the curing behaviors and thermal properties of amine/epoxy blends with the effect of functional nitrile groups of amines. Interestingly, an amine/epoxy blend exhibited double curing reactions. The cured epoxy copolymers exhibited high glass transition temperatures ( > 220 ° C) and excellent thermal stabilities having 5 % weight loss temperature in the range of 375 ° C to 383 ° C.

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Synthesis and thermal properties of the thermosetting resin based on cyano functionalized benzoxazine

Cited by 87 publications

References 19 publications

Nitrogen-Enriched Hierarchically Porous Carbons Prepared from Polybenzoxazine for High-Performance Supercapacitors

Nitrogen-Enriched Hierarchically Porous Carbons Prepared from Polybenzoxazine for High-Performance Supercapacitors

Gradient separation of ⩾300°C distillate from low-temperature coal tar based on formaldehyde reactions

Effect of functional nitrile groups on curing behaviors and thermal properties of epoxy resins as advanced matrix materials

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