Abstract
The a-methyl proton NMR resonances of the three different configurational methyl methacrylate centered triad sequences of alternating styrenemethyl methacrylate (SMMA) copolymers have been reaasigned. Literature assignments are inconsistent with data and each other. Selective decoupling experiments were carried out in the present study to assign the carbon NMR resonances of the a-methyl groups of alternating styrene-methyl methacrylate copolymers. Subsequently, the carbon resonances of the aromatic C1 and a-methyl literature assignments of the statistical SMMA copolymers have been reconsidered and reassigned in terms of configurational triad sequences.
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