Abstract Various copolymers incorporated with β-substituted acrylates, such as alkyl crotonates (e.g., methyl crotonate (MC), ethyl (EC), isopropyl (iPC), and n -butyl (nBC)) cinnamate (MCin), were synthesized by group-transfer polymerization (GTP) using a silicon-based Lewis acid catalyst. In addition to α-substituted acrylates methacrylate (MMA) (nBMA)) examined comonomers. Proton nuclear mag...