Probing anomalous (fractional) dynamics in polymer membranes
In this project we focus on anomalous and fractional dynamics in polymer membranes, which should occur at finite observation times whenever a system has strong memory and/or a complex dynamical potential energy surface. We propose NSE experiments on diluted suspensions of polymersomes made of poly(butadiene-co-ethyleneoxide) (PBD-PEO) in deuterated water. The elastic properties of these membranes are well known by direct methods, which facilitates the interpretation of the relaxation rates of the fluctuation modes in terms of well-known membrane-supported dispersion equations. Different curvatures will be accessed by varying the thickness-to-radius structural ratio within the preparative range (for vesicle radius 20nm < R < 200nm, one gets curvatures in the range 0.75 > h/R > 0.075) which will change chain entangling, the level of lateral stress and finally the chain mobility.
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FOUQUET Peter; GONZALEZ Vicente; HERNANDEZ MOLEIRO Lara; MELL MICHAEL; MONROY Francisco and RODRIGUEZ ARRIAGA Laura. (2014). Probing anomalous (fractional) dynamics in polymer membranes. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1339
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