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考察了以卤素化合物为第三组分对ＮｄＣｌ３·ｎＴＢＰ／ＭｇＣｌ２－Ａｌ（ｉ－Ｂｕ）３体系催化异戊二烯聚合的影响。结果表明，各种卤素化合物的活性顺序为Ａｌ２（ｉ－Ｂｕ）３Ｃｌ３≈ＣｌＣＨ２—ＣＨ＝ＣＨ２＞Ｓｉ（ＣＨ３）２Ｃｌ２＞ＡｌＥｔ２Ｃｌ＞ＴｉＣｌ４；以Ａｌ２（ｉ－Ｂｕ）３Ｃｌ２或ＣｌＣＨ２－ＣＨ＝ＣＨ２作第三组分，采用Ｉｐ－Ａｌ－Ｎｄ三元陈化，Ｃｌ单加或内添加卤素化合物方式，均可以提高催化活性，聚合转化率在Ｃｌ／Ｎｄ值为１－６的范围内基本保持不变。经ＩＲ和１３Ｃ－ＮＭＲ测定表明，除Ｓｔ（ＣＨ３）２Ｃｌ２外，第三组分对聚合物的微观结构影响不大。
The effects of halogen compounds as the third component on the polymerization of isoprene catalyzed by NdCl3 · nTBP / MgCl2-Al (i-Bu) 3 system were investigated. The results show that the activity order of the various halogen compounds is Al2 (i-Bu) 3Cl3≈ClCH2-CH = CH2> Si (CH3) 2Cl2> AlEt2Cl> TiCl4; The third component, using Ip-Al-Nd ternary aging, Cl addition or internal addition of halogen compounds can improve the catalytic activity, the polymerization conversion substantially remained unchanged in the range of Cl / Nd 1-6 change. The results of IR and 13C-NMR show that the third component has little effect on the microstructure of the polymer except St (CH3) 2Cl2.