Synthesis and characterization of hybrid polyimide composites containing Octaphenyl-POSS by simple physical blending method

Noh, Jiho; Lee, Seunghun; Park, No-Hyeong; Kim, Ki‐Young; Lim, Jung‐Hyurk; Kim, Kyung Min

doi:10.1080/15421406.2022.2046916

Cited by 4 publications

(2 citation statements)

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“…POSS is a cage molecule that is both inorganic and organic and has the empirical formula of R(SiO 1.5 ) n ( n = 6,8,10,12, and 14). This material can be chemically or physically blended with the polymer matrix 38,39 . In recent years, the incorporation of POSS into the rubber and thermosetting polymers has been reported by some researchers 11,40–42 .…”

Section: Introductionmentioning

confidence: 99%

“…This material can be chemically or physically blended with the polymer matrix. 38,39 In recent years, the incorporation of POSS into the rubber and thermosetting polymers has been reported by some researchers. 11,[40][41][42] Zhao, et al reported chemically incorporating 2.5% phenyl-vinyl-POSS into polydimethylsiloxane (PDMS), which ameliorated the tensile strength from 0.2 to 0.27 MPa and elongation at break from 14% to 123.6%.…”

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confidence: 99%

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Silicone rubber/benzoxazine resin‐based nanocomposites: A study on compatibility and thermal stability

Faghihi,

Arefazar,

Khonakdar

et al. 2024

Polymer Engineering & Sci

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In this study, blends of silicone rubber (SR) and benzoxazine (BZ) were prepared accompanied by ethylene propylene diene monomer grafted with maleic anhydride (EPDM‐g‐MA) as the compatibilizing agent. A total of 3 phr MA grafted EPDM showed the most favorable grafting efficiency and relatively lower gel content. Results showed that 8 phr (EPDM‐g‐MA) was the optimal compatibilizer content in the 85/15 SR/BZ blend, which was used for further studies. Morphological studies proved that the greatest reduction in the dispersed droplet size (from 1.32 to 0.23 μm) occurred at this optimal compatibilizer loading (8 phr). The lowest difference between the glass transition temperatures of the blend components was observed at the 8 phr compatibilizer content, which was confirmed by DMTA. The mechanical and curing characteristics of compatibilized and uncompatibilized blends were also studied. The results evinced that the tensile strength of the compatibilized samples was higher than that of the uncompatibilized blends. Thermal studies on the 85/15 SR/BZ blend and nanocomposites containing 1, 3, and 5 phr polyhedral oligomeric silsesquioxane (POSS) nanoparticles revealed that the thermal stability of nanocomposites containing 1 and 3 phr POSS was superior to that of the nanocomposite with 5 phr POSS.

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Section: Introductionmentioning

confidence: 99%