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Catalyst for polymerization and copolymerization of olefine and its synthesis and use

A technology of olefin polymerization and copolymerization, which is applied in the fields of olefin polymerization and copolymerization catalysts, synthesis and its application, and can solve problems such as compound unused olefin polymerization

Inactive Publication Date: 2002-01-23
SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] People such as Joanthan Parr have reported that they have synthesized a series of following structure complex nickel (II), palladium (II), platinum (II), the complex of ruthenium (Joanthan Parr etc., J.Chem.Soc., Dalton.1998,3609 ; Joanthan Parr et al., J.Chem.Soc., Dalton.1999, 2917; Inorganica Chimica Acta 2000, 303, 116), but none of these compounds have been used for olefin polymerization reports

Method used

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  • Catalyst for polymerization and copolymerization of olefine and its synthesis and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0221] Example 1 Synthesis of Ligand L1

[0222] In a 100ml reaction flask, add 8.2g (34.4mmol) 3,5-di-tert-butyl salicylaldehyde, 9.6g (34.6mmol) (o-aminophenyl) diphenylphosphine, 50ml absolute ethanol, molecular sieves And a catalytic amount of glacial acetic acid, heated to reflux for 24h, stopped the reaction, removed molecular sieves, concentrated, allowed to cool to room temperature to obtain the crude product, recrystallized with ethanol / ether to obtain light yellow crystal L1, 11.8g (69.4%) .

[0223] Elemental analysis: Measured (calculated value): C: 80.39 (80.29) H: 7.59 (7.35) N: 2.77 (2.84)

[0224] 1 HNMR (300MHz CDCl 3 ): δ8.4 (s CH=N); 7.4-6.8 (m, Aryl H) 1.4, 1.3 (s, s t-Bu-H)

[0225] δ( 31 P)-5.52(s)

Embodiment 2

[0226] Example 2 Synthesis of Ligand L2

[0227] In the reaction bottle of 50ml, add 750mg (3.2mmol) 3, the glacial acetic acid of 5-di-tert-butyl salicylaldehyde, 440mg (3.2mmol) o-dimethylaminoaniline, 25ml dehydrated alcohol, molecular sieve and catalytic amount, After heating to reflux for 20 h, the reaction was stopped, molecular sieves were removed, concentrated, and allowed to cool to room temperature to obtain a crude product, which was recrystallized from ethanol to obtain 352 mg (31%) of light yellow crystal L2.

[0228] Elemental analysis: measured (calculated value): C78.20 (78.37) H8.86 (9.l7) N7.86 (7.86) 1 HNMR (300MHz CDCl 3 ): δ (ppm) 13.9 (s, O-H) 8.6-8.7 (s CH = N) 7.6-6.9 (m, Aryl6H) 2.9 (s, CH 3 6H) 1.5, 1.3 (s, st-Bu-H, 9H, 9H)

[0229] MS352(M+100.00)

[0230] IR (KBr tablet) υ C＝N (cm -1 )1614

Embodiment 3

[0231] Example 3 Synthesis of Ligand L3

[0232] In the reaction flask, add 1.17g (5.25mmol) 3,5-di-tert-butyl salicylaldehyde, 0.64g (5.25mmol) (N-methyl o-phenylenediamine), 15ml absolute ethanol, molecular sieves and catalytic amount After heating to reflux for 2 hours, stop the reaction, remove the molecular sieve, and cool to obtain the crude product, which is recrystallized from ethanol to obtain light yellow crystal L31.67g (98%).

[0233] Elemental analysis: measured (calculated value): C77.85 (78.06) H.86 (8.98) N8.30 (8.28): 1 HNMR (300MHz CDCl 3 ): δ (ppm) 13.4-13.2 (s, O-H) 8.3 (s CH = N); 7.6-6.6 (m, 6HAryl-H) 3.1 (s, N-CH 3 ) 1.5, 1.4 (s, s 9H, 9H t-Bu-H).

[0234] MS(M+)338

[0235] IR(KBr)υ C＝N (cm -1 )1613.3

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Abstract

The catalyst for polymerization and copolymerization of olefine is one novel kind of group III to group XIII transition metal complex of tridentate ligand.

Description

technical field [0001] The invention relates to an olefin polymerization and copolymerization catalyst, a synthesis method and its use for catalyzing olefin polymerization. The catalyst is a transition metal complex from the third group to the thirteenth group of a novel tridentate ligand. Background technique [0002] Since the discovery of the Ziegler-Natta catalyst in the 1950s, highly active MgCl 2 The catalyst of supported titanium shows good catalytic performance, and the application of this catalyst simplifies the production process thereby saving energy and raw materials, and improving the performance of the polymer (K.Ziegler, etc., Angew.Chem.1995,67, 424; K. Ziegler et al., Angew. Chem. 1995, 67, 541; N. Kashiwa et al., USP-3642746, 1968). Industrially, this catalyst has been used in the production of polymers of high-density polyethylene (HDPE), linear low-density polyethylene (LLDPE), and syndiotactic polypropylene (i-PP). However, this kind of solid catalyst ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F4/76C08F10/00
Inventor 唐勇孙秀丽胡蔚秋
Owner SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
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