| 释义 |
al·fin
\ˈalfə̇n\ adjective
Etymology: alcohol + olefin
: of or relating to any of various catalysts made from sodium derivatives of alcohols (as isopropyl alcohol) and olefins (as propylene) and used in certain polymerizations (as of butadiene alone or with styrene and a high-viscosity oil) yielding synthetic rubbers |