Rare Earth catalysis system siam butadiene rubber hian molecular chain regularity sang zawk leh Mooney viscosity sang ber a nei a, hei hian molecular chain hian long chain branching a nei tih a tilang a, hei hian linearity℃sang zawk. a nih thu a tarlang bawk a, hei bakah hian nickel series-a molecular weight distribution chu rare earth series{{1} aiin a tawi zawk tih a tilang bawk.
A tehkhin chuan, butadiene rubber-a rare earth catalyzed polymerization hian CIS structure sang tak, branch less, gel nei lo, chuvangin linear structure tha tak a nei a, chu chu butadiene rubber-a high dimensional regularity tia hriat a ni.chu chu stretching action hnuaiah crystallization chak tak a siam thei a, chu chu "stress crystallization ability, chu chu earth butadasion sang tak, a hlawkna tur a pe a, chu chu goodsile a ni. Fatigue resistance, high-performance tyre siamna atana rubber hmasa ber atan.