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Organic/Inorganic Hybrid Epoxy Nanocomposites from Aminophenylsilsesquioxanes
Abstract
Selected epoxy-functionalized cube nanocomposites were prepared from octa(aminophenyl)silsesquioxane (OAPS), poly(aminophenyl)silsesquioxane (PAPS), octa(dimethylsiloxypropylglycidyl ether) silsesquioxane (OG), diglycidyl ether of bisphenol A (DGEBA) and diaminodiphenylmethane (DDM). A systematic comparison of properties was conducted using GPC, FTIR, 29 Si NMR, TGA, and DMA. In these studies, we find that (1) tethers with aromatic components increase char yields and decomposition temperatures, (2) cube loadings are important in thermal stabilities, (3) aromatic tether structure, short lengths and high cross-link densities reduce tether segmental relaxation motions which in turn stiffen the network and minimize macroscopic glass transitions. Finally, nanocomposites prepared from OAPS and PAPS exhibit nearly identical thermomechanical properties with PAPS offering a low cost alternative to OAPS.
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Citations
Cited by
Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxanes
Cordes, D. B., Lickiss, P. D., & Rataboul, F. (2010) · Chemical Reviews · doi:10.1021/cr900201r · Cited by 1,613
Mechanical properties of hybrid organic–inorganic materials
Mammeri, F., Bourhis, E. L., Rozes, L., & Sanchez, C. (2005) · Journal of Materials Chemistry · doi:10.1039/b507309j · Cited by 512
Polyhedral Oligomeric Silsesquioxanes (POSS)-Containing Nanohybrid Polymers
Pielichowski, K., Njuguna, J., Janowski, B., & Pielichowski, J. (2006) · Advances in Polymer Science · doi:10.1007/12_077 · Cited by 372
Biodegradable Thermoplastic Polyurethanes Incorporating Polyhedral Oligosilsesquioxane
Knight, P. T., Lee, K. M., Qin, H., & Mather, P. T. (2008) · Biomacromolecules · doi:10.1021/bm8004935 · Cited by 141
Metadata
- Authors
- Choi, J., Kim, S. G., & Laine, R. M.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-12-13
- Volume
- 37
- Issue
- 1
- Pages
- 99-109
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2044047524
- Cited by
- 234
- References
- 0
- FWCI
- 9.54
- Type
- journal article
- Language
- en
- Open access
- closed
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