STUDY ON THE SEQUENCE STRUCTURE OF SBR BY <sup>13</sup>C—NMR METHOD Ⅰ. ASSIGNMENT FOR UN

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The sequence structures of emulsion-processed SBR and solution-processed (by lithium catalyst) SBR were investigated by <sup>13</sup>C-NMR spectroscopy. Seventeen peaks within unsaturated carbon region were recorded under the adopted experimen
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