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https://doi.org/10.1039/b900299e
Title: | Polyhedral oligomeric silsesquioxanes tethered with perfluoroalkylthioether corner groups: Facile synthesis and enhancement of hydrophobicity of their polymer blends | Authors: | Xu, J. Li, X. Cho, C.M. Toh, C.L. Shen, L. Mya, K.Y. Lu, X. He, C. |
Issue Date: | 2009 | Citation: | Xu, J., Li, X., Cho, C.M., Toh, C.L., Shen, L., Mya, K.Y., Lu, X., He, C. (2009). Polyhedral oligomeric silsesquioxanes tethered with perfluoroalkylthioether corner groups: Facile synthesis and enhancement of hydrophobicity of their polymer blends. Journal of Materials Chemistry 19 (27) : 4740-4745. ScholarBank@NUS Repository. https://doi.org/10.1039/b900299e | Abstract: | Octa(vinyl)-POSS or octa(vinyldimethylsilyloxy)-POSS reacts with perfluoroalkyl thiol in the presence of 2,2′-azobisisobutyronitrile to afford perfluoroalkylthioether substituted POSS compounds in high yields. 29Si NMR and MALDI-TOF mass spectroscopic analyses indicate that the eight perfluoroalkylthioether chains are attached to the POSS core structure. Studies on poly(methyl methacrylate) (PMMA) blends with 5 wt% fluorinated POSS (fluoroPOSS) reveal that the POSS molecules considerably enhance the hydrophobicity of polymer blend surfaces as evidenced by significant increases in water contact angles from 71° for pure PMMA to 114-124° for fluoroPOSS-blends, making this type of fluoroPOSS a promising new class of highly hydrophobic hybrid materials. © 2009 The Royal Society of Chemistry. | Source Title: | Journal of Materials Chemistry | URI: | http://scholarbank.nus.edu.sg/handle/10635/94563 | ISSN: | 09599428 | DOI: | 10.1039/b900299e |
Appears in Collections: | Staff Publications |
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