STUDY ON ETHYLENE POLYMERIZATION CATALYZED BY 3-ALLYL-5-CHLORO SUBSTITUTED SALICYLALDIMINATO NICKEL(Ⅱ)COMPLEX

XU Yongjin; SUN Junquan; SHAN Yuhua; WANG Lincai

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STUDY ON ETHYLENE POLYMERIZATION CATALYZED BY 3-ALLYL-5-CHLORO SUBSTITUTED SALICYLALDIMINATO NICKEL(Ⅱ)COMPLEX

Research Article | 更新时间：2021-03-19

- STUDY ON ETHYLENE POLYMERIZATION CATALYZED BY 3-ALLYL-5-CHLORO SUBSTITUTED SALICYLALDIMINATO NICKEL(Ⅱ)COMPLEX
- Acta Polymerica Sinica Issue 5, Pages: 656-660(2004)
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- Published：20 October 2004，
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XU Yongjin, SUN Junquan, SHAN Yuhua, WANG Lincai. STUDY ON ETHYLENE POLYMERIZATION CATALYZED BY 3-ALLYL-5-CHLORO SUBSTITUTED SALICYLALDIMINATO NICKEL(Ⅱ)COMPLEX. [J]. Acta Polymerica Sinica (5):656-660(2004)
DOI：

XU Yongjin, SUN Junquan, SHAN Yuhua, WANG Lincai. STUDY ON ETHYLENE POLYMERIZATION CATALYZED BY 3-ALLYL-5-CHLORO SUBSTITUTED SALICYLALDIMINATO NICKEL(Ⅱ)COMPLEX. [J]. Acta Polymerica Sinica (5):656-660(2004) DOI：

摘要

合成了 3 烯丙基 5 氯水杨醛亚胺配体

并与trans [NiCl(Ph) (PPh3)2 ]反应合成了配合物 (7) { [O (3 Allyl) (5 Cl)C6 H2 ortho C(H)N 2

6 C6 H3(i-Pr)2 ]Ni(Ph3P) (Ph) }

以质谱

1H-NMR和元素分析对配体及配合物进行了表征 .在Ni(COD)2 作助催化剂下能有效地催化乙烯聚合 .在 8.08×105Pa的压力下

其最高活性可达 6.31×105gPE (molNi·h)

所得聚乙烯粘均分子量在 1.57×104 ～4.34×104之间.添加THF、乙酸乙酯、乙醚对催化聚合性能影响不显著

然而添加MMA则不仅没有共聚

相反严重降低了催化活性.

Abstract

3-Allyl -5-chloro substituted salicylaldimine(6) was prepared and then reacted with trans-[NiCl(Ph)-(PPh3)2] to give the salicylaldiminato nickel(II) complex(7) {[O-(3-Allyl)(5-Cl)C6H2-ortho-C(H)=N-2

6-C6H3(i-Pr)2]Ni(Ph3P)(Ph)}. These compounds(6)

(7) were characterized well by MS

1H-NMR and element analysis. The complex (7) activated by Ni(COD)2 can catalyze ethylene polymerization effectively. At 8.08×105 Pa pressure

the polymerization activity can reach 6.31×105g PE／(mol Ni·h)

the polymer product’s Mη ranged from 1.57×104 to 4.34×104. However

addition of THF

ethyl acetate and ethyl ether

the activity does not decrease evidently．Addition of MMA

the polar monomer is not incorporated into polymer

and the polymerization activity decreases markedly．

关键词

后过渡金属烯烃聚合催化剂水杨醛亚胺烯丙基取代

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Institute of Polymer Science,School of Chemistry and Chemical Engineering Zhongshan University

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