With phenol (26B4M vs. 2B4M) substituted by two tertbutyls at ortho sites, Sm(26B4M)3 has the highest catalytic activity and obtain PCL with highest Mwwhile widest MWD: Sm(26B4M)3> Sm(2B4M)3> Sm(4M)3. 5).是什么意思_With phenol (26B4M vs. 2B4M) substituted by two tertbutyls at ortho sites, Sm(26B4M)3 has the highest catalytic activity and obtain PCL with highest Mwwhile widest MWD: Sm(26B4M)3> Sm(2B4M)3> Sm(4M)3. 5).在线翻译_英语_读音_用法_例句