Abstract
The temperature dependence of chemical shifts in 1H-NMR spectra of solutions of methyl methacrylate (MMA) in various solvents revealed specific interaction of MMA molecules with dimethylformamide (DMF). In the system MMA-poly (methyl methacrylate) (PMMA)-DMF, PMMA acts as a further component interacting with MMA. This interaction is independent of the stereoregularity of PMMA and can be detected also in cases where PMMA is present in the form of an ordered structure, the so-called stereocomplex. In systems containing instead of MMA the dimethyl ester of 2,2,4,4-tetramethylglutaric acid, similar interactions have not been observed. The interactions in the system MMA-PMMA-DMF are discussed from the point of view of replica polymerization of MMA.
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