2016
DOI: 10.1002/app.44518
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Preparation and properties of 4,4′‐(hexafluoroisopropylidene) diphenol cured 2,2‐bis(4‐cyanatophenyl) propane

Abstract: A novel easily curing system of 2,2-bis(4-cyanatophenyl) propane(BACY) was prepared by employing 4,4 0 -(Hexafluoroisopropylidene) Diphenol (BPAF) as modifier. The curing efficiency of BPAF was evaluated by means of differential scanning calorimetry (DSC) and Fourier translation infrared spectroscopy analysis (FTIR). It was found that the exothermic peak temperature (T p ) was 168 8C when the content of BPAF/BACY was 15/85 by weight, while the temperature of BACY was 215 8C under the same conditions when trace… Show more

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Cited by 2 publications
(4 citation statements)
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“…However, the T d5% (340–360°C) and T d10% (390–410°C) of the modified polycyanurates remained higher than that of the BPAF/CoAt/BADCy system studied previously ( T d5% and T d10% were approximately 324 and 368°C, respectively). 25 In addition, the HO/CoAt/BADCy copolymer showed the highest R w (approximately 34.6%) herein. This phenomenon can be explained by two p -substituted hydroxyl groups in hydroquinone imparting high reaction activity with BADCy, resulting in a more complete curing procedure.…”
Section: Resultsmentioning
confidence: 86%
See 1 more Smart Citation
“…However, the T d5% (340–360°C) and T d10% (390–410°C) of the modified polycyanurates remained higher than that of the BPAF/CoAt/BADCy system studied previously ( T d5% and T d10% were approximately 324 and 368°C, respectively). 25 In addition, the HO/CoAt/BADCy copolymer showed the highest R w (approximately 34.6%) herein. This phenomenon can be explained by two p -substituted hydroxyl groups in hydroquinone imparting high reaction activity with BADCy, resulting in a more complete curing procedure.…”
Section: Resultsmentioning
confidence: 86%
“…24 Upon addition of 15 wt% 4,4-(hexafluoroisopropylidene) diphenol (BPAF) to cobalt acetylacetonate (CoAt)/BADCy, the T p of the resin shifted from 215°C to 168°C. 25 Nucleophilic reagents, such as DPDP, DOPO, NP and BPAF, lowered the curing exothermic peak temperature of cyanate ester resins. However, copolymerization of active hydrogen compounds with BADCy frequently deteriorated the heat resistance of the material.…”
Section: Introductionmentioning
confidence: 99%
“…In this study, we used Material Studio 7.0 to complete the modeling and calculation. Firstly, the cross-linking network model of fluorine-containing epoxy resin was constructed, and the DGEBA was fluorinated with hexafluorophobia bisphenol A (BPAF) as a fluorinating agent [8,41]. The monomer molecular models of DGEBA, methyltetrahydrophthalic anhydride (MTHPA), and BPAF were constructed.…”
Section: Model Construction and Simulation Calculationmentioning
confidence: 99%
“…As the operating conditions of epoxy resin materials become increasingly complex, higher requirements have been put forward for their thermal, mechanical, and insulation properties [5,6]. In recent years, fluorinated epoxy resin (F-EP) has gradually attracted researchers' attention due to excellent insulation and dielectric properties coming from the extremely strong electronegativity of fluorine and the high bond energy of C-F bond [7][8][9]. However, the mechanical strength, heat resistance, and thermal conductivity of F-EP materials cannot meet the requirements of high voltage insulation materials, which has become a key factor restricting its further application.…”
Section: Introductionmentioning
confidence: 99%