以苯乙烯、甲基丙烯酸甲酯、丙烯酸丁酯為單體進(jìn)行種子乳液聚合。若要增強(qiáng)苯丙乳液對極性被粘物的粘附性,可以加入何種乙烯基單體？為什么？ 2 、乳化劑選擇有何標(biāo)準(zhǔn)？用量怎樣確定？ 3 、反應(yīng)體系中加適當(dāng)?shù)奶妓釟溻c有何用意？ 4 、何為固含量和凝膠率,如何表示？
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In which prt of the ply is it Lily will ply role whereB．whichC．thtD．whoIn which prt of the ply is it____Lily will ply role where B．which C．tht D．who
In which prt of the ply is it Lily will ply role whereB．whichC．thtD．whoIn which prt of the ply is it____Lily will ply role where B．which C．tht D．who
A.where
B.which
C.that
D.who