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Soluble and thermally stable polycarbonate polyurethane elastomers were synthesized through a solvent‐free and nonisocyanate melt transesterification process. The conditions of this process were studied, and the optimum conditions were as follows: the catalyst dibutyltin oxide dosage was 0.125 wt %, the raw material molar (n) ratio of dimethyl 1,6‐hexamethylene dicarbamate (HDC) to poly(carbonate...