CHAIN CONFORMATION AND DYNAMICS IN AN INTERNALLY CROSS-LINKED POLYMER MELT: DISAPPEARENCE OF ENTANGLEMENTS
Recent experiments on Single-Chain-Nano-Particles in bulk reveal that the structural relaxation is hardly sensitive to internal cross-links, while macroscopic rheology shows a spectacular disentanglement with respect to the linear chains' melt counterpart. A new emerging relaxation process at intermediate length scales --also detectable by dielectric spectroscopy-- seems to be the mechanism controlling the viscous flow in the SCNPs. We want to search for the microscopic signatures of such a process in the single chain dynamic structure factor, and provide experimental evidence for the internal loops structure predicted by MD-simulations through SANS.
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Arantxa Arbe; BRAENDEL Timo; COLMENERO Juan; FALUS Peter; HOFFMANN Ingo; Paula Malo de Molina; MENDIA Ander; POMPOSO Jose A. and PORCAR Lionel. (2019). CHAIN CONFORMATION AND DYNAMICS IN AN INTERNALLY CROSS-LINKED POLYMER MELT: DISAPPEARENCE OF ENTANGLEMENTS. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1894
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