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| Progress in the Studies of Structural Changes in Polymer Liquids by Mechanical Spectroscopy |
| ZHU Zhengang,WU Xuebang,ZHOU Xuemao,LIU Changsong |
| (Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China) |
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Abstract The recent progress in the investigation of structural changes in polymer liquids (i.e. polymer melts and concentrated solutions) by mechanical spectroscopy was reviewed. The effects of molecular weight and composition of polymer blends on the liquidliquid transition were analyzed, and the mechanism of the liquidliquid transition was clarified. The relationships between the phase behaviors of concentrated aqueous solutions of poly (ethylene oxide)poly(propylene oxide)poly(ethylene oxide) (PEOPPOPEO) and temperature, concentration and the addition of NaCl were presented. The outlook on some of the most promising areas that being studied through mechanical spectroscopy in the area of soft matter was also pointed out.
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Received: 20 March 2009
Published: 31 May 2010
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