Supramolecular selectivity of poly(ethylene oxide) in semi‐crystalline polymer nanocomposites |
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| Authors: | Li Zhou Min Peng Qun Chen Peng He Xinyuan Zhu |
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| Affiliation: | 1. School of Chemistry and Chemical Technology, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China;2. Key Laboratory of Education Ministry for Optical and Magnetic Resonance Spectroscopy, East China Normal University, Shanghai 200062, PR China;3. Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA;4. Peng He, Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA;5. Xinyuan Zhu, School of Chemistry and Chemical Technology, State Key Laboratory ofMetalMatrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China |
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| Abstract: | Semi‐crystalline polymer nanocomposites were prepared using successive meltings and recrystallizations techniques by intercalation of small guest molecules such as 4‐chlorotoluene (PCT), 4‐bromotoluene (PBT) and 1,4‐dibromobenzene (PDBB) into poly(ethylene oxide) (PEO) crystals. Differential scanning calorimetry, Fourier transform infrared spectroscopy and wide‐angle X‐ray diffraction experimental results show that supramolecular selectivity exists for the PEO–PDBB/PBT ternary system, while there is no supramolecular selectivity for PEO–PCT/PBT ternary nanocomposites. The interactions between PEO chains and small guest molecules have an important influence on the polymer conformation, which results in the dramatic difference in intercalation behavior. Copyright © 2007 Society of Chemical Industry |
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| Keywords: | supramolecular selectivity poly(ethylene oxide) semi‐crystalline polymer nanocomposites helical conformation |
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