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Preparation and properties of bisphenol A polyetherketoneketone based phthalonitrile resins
Loren C. Brown ; Tyler J. Richardson ; Clair F. Lusk , et al. J. Appl. Polym. Sci.,2024,141(11):e55080. DOI: 10.1002/app.55080
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Abstract: A promising high temperature phthalonitrile (PN) resin composed of a polyetherketoneketone (PEKK) core bridged by two bisphenol A linkers and end capped with PN groups is presented. This PEKK-PN resin was characterized via differential scanning calorimetry, thermogravimetric analysis, proton nuclear magnetic resonance spectroscopy, scanning electron microscopy, dynamic mechanical analysis, attenuated total reflection Fourier transform infrared, and rheometry. The PEKK-PN resin was evaluated with two different compositions containing 1) 70:30 PEKK-PN to bisphenol A PN (n?=?0) and 2) pure PEKK-PN. The 70:30 PEKK-PN resin was mixed with bis[4-(3-aminophenoxy)phenyl]sulfone and exhibited a melt viscosity of 271?cP, much lower than the 657?cP viscosity of the pure PEKK-PN mixture. Void-free PEKK-PN polymers were easily prepared by degassing and curing up to 380°C, resulting in fully crosslinked networks exhibiting thermal stability above 500°C and a 75% char yield. Additionally, the cured PEKK-PN polymer samples displayed good mechanical integrity retaining 50% stiffness at 300°C. This combination of properties suggests these new PEKK-PN resins are excellent materials for high temperature thermosets in composite applications.
Keywords: bisphenol A ; phthalonitrile ; resin ; thermoset
Purchased from AmBeed: 31643-49-9 ; 108464-88-6
CAS No. : | 108464-88-6 | MDL No. : | MFCD00239360 |
Formula : | C20H12F2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | PISLKPDKKIDMQT-UHFFFAOYSA-N |
M.W : | 322.30 | Pubchem ID : | 688263 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P233-P260-P261-P264-P271-P280-P302+P352-P304-P304+P340-P305+P351+P338-P312-P321-P332+P313-P337+P313-P340-P362-P403-P403+P233-P405-P501 | UN#: | |
Hazard Statements: | H315-H319-H335 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
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