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Abstract
AbstractDiffusion coefficients of camphorquinone (CQ) and its photoproduct (CQP) in two poly(methyl metbacrylate) (PMMA) samples with different molecular weights are measured as a function of temperature. Above the glass transition, the temperature dependence is not Arrhenius and can be described by the Williams‐Landel‐Ferry equation. It is also shown that the difference in the temperature dependence of the diffusion coefficients of CQ in the two PMMA samples is attributable to the difference in glass transition temperatures.
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