Early stages of oligomer–polymer diffusion
作者： D.G. Bucknall , J.S. Higgins , S.A. Butler
DOI: 10.1016/S0009-2509(01)00171-3
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摘要: Abstract We present results of neutron reflectivity measurements plasticiser diffusion into high molecular weight deuterated poly(methyl methacrylate) (dPMMA). These were made in situ and real time, enabling the interfacial profile to be studied detail situations where normal ‘anneal–quench’ procedure is impossible. From velocity front, coefficients for two weights oligo-methyl methacrylate (OMMA) have been determined. Oligo-poly(ethylene glycol) (PEG) diffusing dPMMA has also measured limited solubility PEG observed.
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