Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film
We report the effect of oleic acid-capped magnetic nanoparticles (mNPs, γ-Fe2O3) on the morphology and phase separation behavior of diblock copolymer thin film, polystyrene-b-poly(methyl methacrylate), PS-b-PMMA, under various experimental conditions such as the casting solvent, mNPs concentration,...
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sg-ntu-dr.10356-991992020-03-07T11:35:24Z Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film Yang, Ping Wang, Shuchao Teng, Xue Wei, Wei Dravid, Vinayak P. Huang, Ling School of Chemical and Biomedical Engineering DRNTU::Science::Chemistry::Physical chemistry We report the effect of oleic acid-capped magnetic nanoparticles (mNPs, γ-Fe2O3) on the morphology and phase separation behavior of diblock copolymer thin film, polystyrene-b-poly(methyl methacrylate), PS-b-PMMA, under various experimental conditions such as the casting solvent, mNPs concentration, and the annealing time. If chloroform (CHCl3, slightly selective for PMMA) is selected as the casting solvent, the morphologies of the PS-b-PMMA thin film are affected by the embedded mNPs, while there will be no such effect when toluene (slightly selective for PS) is used. In toluene systems, at lower mNP concentration, lateral microphase separation occurred faster than that without mNPs, but at higher concentration, the underlying self-assembled diblock copolymer structure is no longer correlated with the mNPs assembly. Increasing the annealing time of the PS-b-PMMA/mNPs nanocomposite thin film causes a similar effect as that of increasing the concentration of mNPs. 2013-10-31T01:53:50Z 2019-12-06T20:04:27Z 2013-10-31T01:53:50Z 2019-12-06T20:04:27Z 2012 2012 Journal Article Yang, P., Wang, S., Teng, X., Wei, W., Dravid, V. P., & Huang, L. (2012). Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film. The journal of physical chemistry C, 116(43), 23036-23040. https://hdl.handle.net/10356/99199 http://hdl.handle.net/10220/17101 10.1021/jp305827x en The journal of physical chemistry C |
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DRNTU::Science::Chemistry::Physical chemistry Yang, Ping Wang, Shuchao Teng, Xue Wei, Wei Dravid, Vinayak P. Huang, Ling Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film |
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We report the effect of oleic acid-capped magnetic nanoparticles (mNPs, γ-Fe2O3) on the morphology and phase separation behavior of diblock copolymer thin film, polystyrene-b-poly(methyl methacrylate), PS-b-PMMA, under various experimental conditions such as the casting solvent, mNPs concentration, and the annealing time. If chloroform (CHCl3, slightly selective for PMMA) is selected as the casting solvent, the morphologies of the PS-b-PMMA thin film are affected by the embedded mNPs, while there will be no such effect when toluene (slightly selective for PS) is used. In toluene systems, at lower mNP concentration, lateral microphase separation occurred faster than that without mNPs, but at higher concentration, the underlying self-assembled diblock copolymer structure is no longer correlated with the mNPs assembly. Increasing the annealing time of the PS-b-PMMA/mNPs nanocomposite thin film causes a similar effect as that of increasing the concentration of mNPs. |
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School of Chemical and Biomedical Engineering |
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School of Chemical and Biomedical Engineering Yang, Ping Wang, Shuchao Teng, Xue Wei, Wei Dravid, Vinayak P. Huang, Ling |
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Article |
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Yang, Ping Wang, Shuchao Teng, Xue Wei, Wei Dravid, Vinayak P. Huang, Ling |
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Yang, Ping |
title |
Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film |
title_short |
Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film |
title_full |
Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film |
title_fullStr |
Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film |
title_full_unstemmed |
Effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film |
title_sort |
effect of magnetic nanoparticles on the morphology of polystyrene-b-poly(methyl methacrylate) diblock copolymer thin film |
publishDate |
2013 |
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https://hdl.handle.net/10356/99199 http://hdl.handle.net/10220/17101 |
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