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|Title:||Reinforcement of polyether polyurethane with dopamine-modified clay : the role of interfacial hydrogen bonding||Authors:||Phua, Si Lei
Toh, Cher Ling
Lau, Soo Khim
|Issue Date:||2012||Source:||Phua, S. L., Yang, L., Toh, C. L., Huang, S., Tsakadze, Z., Lau, S. K., Mai, Y. W., & Lu, X. (2012). Reinforcement of Polyether Polyurethane with Dopamine-Modified Clay: The Role of Interfacial Hydrogen Bonding. ACS Applied Materials & Interfaces, 4(9), 4571-4578.
Phua, S. L., Yang, L., Toh, C. L., Huang, S., Tsakadze, Z., Lau, S. K., et al. (2012). Reinforcement of Polyether Polyurethane with Dopamine-Modified Clay: The Role of Interfacial Hydrogen Bonding. ACS Applied Materials & Interfaces, 4(9), 4571-4578.
|Series/Report no.:||ACS applied materials & interfaces||Abstract:||Dopamine-modified clay (D-clay) was successfully dispersed into polyether polyurethane (PU) by solvent blending. It is found that the incorporation of D-clay into PU gives rise to significant improvements in mechanical properties, including initial modulus, tensile strength, and ultimate elongation, at a very low clay loading. The large reinforcement could be attributed to the hydrogen bonds between the hard segments of PU and stiff D-clay layers that lead to more effective interfacial stress transfer between the polymer and D-clay. Besides, the interactions between D-clay and PU are also stronger than those between Cloisite 30B organoclay and the PU chains. Consequently, at a similar clay loading, the PU/D-clay nanocomposite has much higher storage modulus than the PU/organoclay nanocomposite at elevated temperatures.||URI:||https://hdl.handle.net/10356/97037
|ISSN:||1944-8244||DOI:||http://dx.doi.org/10.1021/am300947b||Rights:||© 2012 American Chemical Society.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MSE Journal Articles|
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