The strengthening and toughening effects of a novel octa(propargyl propyl sulfide) POSS (OPPSP) on silicon-containing arylacetylene (PSA) resin

Bu, Xiaojun; Huang, Farong

doi:10.1016/j.matlet.2016.03.067

Cited by 20 publications

(3 citation statements)

References 15 publications

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“…Kaliavaradhan [31] synthesized tri-phthalonitrile phenyl POSS polymers with high thermal and retardant properties. Bu synthetized POSS-polysulfonamide (PSA, silicon-containing arylacetylene) resins with higher flexural strength and impact fractured energy, by 80.5% and 92.8% respectively [32]. Pen prepared POSS-TiO 2 -epoxy nanocomposites with enhanced thermal stability and UV resistance [33].…”

Section: Introductionmentioning

confidence: 99%

Cure Behavior and Thermomechanical Properties of Phthalonitrile–Polyhedral Oligomeric Silsesquioxane Copolymers

Zhang

et al. 2017

Polymers

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Phthalonitrile-polyhedral oligomeric silsesquioxane (POSS) copolymers were prepared by adding two different POSS cage mixtures: epoxycyclohexyl POSS (EP0408) and N-phenylaminopropyl POSS (AM0281). The cure behavior and properties of these polymers were analyzed and compared using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), Fourier transform far infrared (FTIR) measurements, and rheometric studies. The POSS-containing polymers showed higher chemical reactivity, better thermal stability and better mechanical performance in comparison to their unmodified counterparts. All the polymers showed water absorption below 1.5%. As revealed by FTIR measurements, the polymerization products contained triazine ring structures that were responsible for the superior thermal properties exhibited by these POSS-containing polymers.

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Section: Introductionmentioning

confidence: 99%

Cure Behavior and Thermomechanical Properties of Phthalonitrile–Polyhedral Oligomeric Silsesquioxane Copolymers

Zhang

et al. 2017

Polymers

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“…The impact strength was also depended on the synergistic effect of reactive POSS nanocages and unreactive POSS rich particles. POSS nanocages can effectively absorb the energy acting on the polymer chain and share the impact load, while homogeneous POSS particles can branch and deflect cracks by deflection, blocking, or crack bridging to prevent crack propagation [23][24][25].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

MethacrylPhenyl POSS modified UV-curing materials for three-dimensional printing

et al. 2019

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Ultraviolet curing three dimensional printing (3DP), as an additive manufacturing technology, possesses relatively higher forming precision and faster forming speed, However, its low mechanical properties limit its applications. In this work, the morphology and properties of epoxy acrylate matrix 3DP materials modified by MethacrylPhenyl polyhedral oligomeric silsesquioxanes (MP-POSS) at different loadings (wt% = 0, 1, 3, 5, 7) were studied. The XRD and FTIR analysis indicated that MP-POSS chemically incorporated into the hybrid materials by copolymerization. The morphological analysis showed that POSS rich particles appeared when POSS loading was 5 wt%, the mean diameter of POSS rich particles increased with the increasing of POSS loadings, and the POSS rich particles agglomerated obviously when POSS loading reached 7 wt%. The tensile strength and the impact strength of the nanocomposites with 5 wt% POSS were increased to 48.9 MPa and 12.8 kJ/m 2 which were 150.9% and 162.1% compared with the unfilled materials. Analyzed with the SEM images of fracture surfaces, the mechanical properties may depend on the synergistic effect of reactive POSS nanocages and unreactive POSS rich particles. TGA and DTG curves showed the enhancement of the thermal stability of the nanocomposites at the later period of degradation process.

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“…High-temperature polymers and their composites have attracted constant attention in material research and engineering due to their good properties and light quality compared to those of traditional metal materials. With the expanding applications of special thermosetting resins, researchers have been pursuing new high-temperature resistant resins such as phthalonitrile resin, polyimide resin, and silicone-containing aryne resin as replacement or modification of conventional phenolic resin, epoxy resin, and others. Among them, phthalonitrile resins, originally developed by Keller and his colleagues at the Naval Research Laboratory, , have become the star member of the high-performance thermoset resin family.…”

Section: Introductionmentioning

confidence: 99%

Phthalonitrile Containing Branched Cyanine: Structure, Curing, and Its Properties

Liu,

et al. 2024

ACS Appl. Polym. Mater.

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In order to improve the reliability of phthalonitrile resins in extreme service environments, a high cyanodensity phthalonitrile monomer (BPN) containing branched cyano groups was synthesized from 3,4dihydroxybenzonitrile and 4-nitrophthalonitrile and characterized by 1 H NMR and FTIR. It was found that polymerized BPN (p-BPN) exhibited excellent thermal properties with a T d5 of 540 °C when tested in N 2 in the thermogravimetric analysis (TGA), as well as a glass transition temperature (T g ) of p-BPN1 exceeded 480 °C when tested in the dynamic mechanical analysis (DMA). A comprehensive study was conducted to gain a detailed understanding of the diverse curing mechanisms in realistic operational settings. The results from TGA and in situ FTIR in different atmospheres demonstrated that oxygen plays a beneficial role in the thermal stability of the cured resin. The weight gain observed at lower temperatures is attributed to oxidation, which results in the formation of heat-resistant structures such as imide rings. The flexural strength of QF/p-BPN1 was 446.4 and 266.3 MPa, respectively, after treatment at room temperature and 500 °C, with high retention at 59.7%.

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The strengthening and toughening effects of a novel octa(propargyl propyl sulfide) POSS (OPPSP) on silicon-containing arylacetylene (PSA) resin

Cited by 20 publications

References 15 publications

Cure Behavior and Thermomechanical Properties of Phthalonitrile–Polyhedral Oligomeric Silsesquioxane Copolymers

Cure Behavior and Thermomechanical Properties of Phthalonitrile–Polyhedral Oligomeric Silsesquioxane Copolymers

MethacrylPhenyl POSS modified UV-curing materials for three-dimensional printing

Phthalonitrile Containing Branched Cyanine: Structure, Curing, and Its Properties

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