Sequence Distribution and Stereoregularity in Styrene/Butyl Methacrylate Copolymers Obtained at High Conversion by Stable Free‐Radical Polymerization

¹³C NMR spectra of styrene/butyl methacrylate copolymers prepared in bulk at 125°C using 2,2,6,6‐tetramethyl‐1‐(1‐phenylethoxy)piperidine as the initiator were analyzed. After assignment of the carbon resonances of the aromatic C‐1 region, the Mayo‐Lewis terminal model (MLTM) was tested by comparison of experimental and predicted values of configurational triad sequences. It follows that MLTM provides an excellent prediction across a wide conversion range for all comonomer feeds.