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- W2093187564 abstract "Polyhedral oligomeric silsesquioxanes epoxy resin (GM-POSS) was prepared from 3-glycidyloxypropyl-trimethoxysilane (GTMS) and methyl triethoxysilane (MTES) by hydrolytic condensation. GM-POSS was characterized using liquid chromatography/mass spectrometry (LC/MS). The epoxy value of GM-POSS is 0.23 mol/100 g. The LC/MS analysis indicates that T 8 and T 9 cages are the majority and contain some amount of T 10. The co-cured nanocomposites of BPA epoxy resin with GM-POSS using 3-methyl-tetrahydrophthalic anhydride (MeTHPA) as the curing agent were prepared and the co-curing kinetics was investigated by nonisothermal differential scanning calorimetry (DSC). The relationship between apparent activation energy Ea and the conversion α was obtained by the isoconversional method of Kissinger, and E a is 68–78 k J/mol. The results show that these curing reactions can be described by the Šesták-Berggren (S-B) equation, which includes two parameters, m and n. For different mass ratio of GM-POSS and BPAER, the two reaction orders, m and n, are in the range of 0.25 ∼ 0.42 and 0.52 ∼ 1.28, respectively. The curing kinetics can be described by the equations" @default.
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- W2093187564 date "2008-08-25" @default.
- W2093187564 modified "2023-10-09" @default.
- W2093187564 title "Preparation of BPA Epoxy Resin/POSS Nanocomposites and Nonisothermal Co-curing Kinetics with MeTHPA" @default.
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- W2093187564 doi "https://doi.org/10.1080/00914030802153397" @default.
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