Epoxy/polyhedral oligomeric silsesquioxane nanocomposites from octakis(glycidyldimethylsiloxy)octasilsesquioxane and small‐molecule curing agents | Zendy

Liu YingLing | Zendy; Chang GungPei | Zendy; Hsu KehYing | Zendy; Chang FengChih | Zendy

Open Access

Epoxy/polyhedral oligomeric silsesquioxane nanocomposites from octakis(glycidyldimethylsiloxy)octasilsesquioxane and small‐molecule curing agents

Author(s) -

Liu YingLing,

Chang GungPei,

Hsu KehYing,

Chang FengChih

Publication year - 2006

Publication title -

journal of polymer science part a: polymer chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.768

H-Index - 152

eISSN - 1099-0518

pISSN - 0887-624X

DOI - 10.1002/pola.21484

Subject(s) - silsesquioxane , nanocomposite , flammability , curing (chemistry) , thermal stability , epoxy , fire retardant , bisphenol a , polymer chemistry , diglycidyl ether , materials science , chemistry , composite material , polymer , organic chemistry

Epoxy/polyhedral oligomeric silsesquioxane (POSS) nanocomposites were obtained from octakis(glycidyldimethylsiloxy)octasilsesquioxane (OG) and diglycidyl ether of bisphenol A cured with small‐molecule curing agents of diethylphosphite (DEP) and dicyandiamide (DICY). An increase in the POSS contents of the nanocomposites and an improvement in the nanocomposite homogeneity were observed with the use of the small‐molecule curing agents. Phosphorus in DEP and nitrogen in DICY also performed synergism with POSS for thermal stability enhancement and flammability improvement in the nanocomposites. The nanocomposites possessing high OG contents exhibited good thermal stability, improved flammability, and high storage moduli. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 3825–3835, 2006

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