This can be attributed to the phenomenon of dissolving a part of the elemental sulphur and silica particles into the excessive ALK and, as a consequence, less sulphur and silica were attached to the NR chains
This can be attributed to the phenomenon of dissolving a part ofthe elemental sulphur and silica particles into the excessiveALK and, as a consequence, less sulphur and silica wereattached to the NR chains