Amoeba-like behavior of a polymer chain confined in 2D: poly(ethyleneoxide) intercalated in graphite oxide
MD-simulations on 2D polymer chains have found that highly correlated amoeba-like fluctuations of the fractal contours of the compact (sub)chains are the dominant dynamics mechanism. We want to provide experimental evidence for such an intriguing behavior by investigating the single chain dynamic structure factor of poly(ethylene oxide) intercalated in graphite oxide layers. We have demonstrated that in this system the chains are forced to adopt a completely planar conformation with a one-monomer thickness, i.e. exactly the conditions of 2D-conformation. With SANS measurements and applying contrast variation we have already addressed the single chain form factor of the 2D-confined PEO chains thereby confirming the predictions by molecular dynamics simulations.
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BARROSO BUJANS Fabienne; Arantxa Arbe; COLMENERO Juan and FALUS Peter. (2012). Amoeba-like behavior of a polymer chain confined in 2D: poly(ethyleneoxide) intercalated in graphite oxide. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1587
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