abstract |
The present invention relates to a modified conjugated diene-based polymer having desirable processability and excellent tensile strength and viscoelastic characteristics, and to a rubber composition comprising same. The modified conjugated diene-based polymer exhibits a narrow molecular weight distribution while having a unimodal molecular weight distribution curve as determined by gel permeation chromatography, has a Mooney relaxation rate of 0.7 or higher, and comprises a modifier-derived functional group represented by chemical formula 1, and thus has excellent processability and exhibits excellent tensile and viscoelastic characteristics. |