英文名称:POLY(ISOPRENE), CIS, AVERAGE M.W. 800.000; POLYISOPRENE, CIS, AVERAGE MW CA. 40,000 (GPC) (MADE FROM SYNTHETIC RUBBER); POLYISOPRENE, CIS, AVERAGE MW CA. 38,000 (GPC) (MADE FROM NATURAL RUBBER); cis-Polyisopreneaveragemwca.38,000(gpc); madefromnaturalrubber; cis-Polyisoprene