Supported alpha-diimine compound and application of supported alpha-diimine compound in olefin polymerization

A diimine compound, supported technology, applied in nickel organic compounds, silicon organic compounds, compounds containing elements of Group 8/9/10/18 of the periodic table, etc., can solve the problem of poor thermal stability and high amount of cocatalyst , the polymer morphology is difficult to control and other problems, to achieve the effect of good thermal stability, strong chemical bond force, and reduced impact

Inactive Publication Date: 2015-07-29
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an α-diimine post-transition metal catalyst in the current technology in view of the problems of sticky kettle, difficult control of polymer morp

Method used

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  • Supported alpha-diimine compound and application of supported alpha-diimine compound in olefin polymerization
  • Supported alpha-diimine compound and application of supported alpha-diimine compound in olefin polymerization
  • Supported alpha-diimine compound and application of supported alpha-diimine compound in olefin polymerization

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1

[0035] Synthesis and preparation of 5-{4-[3-(silicaoxydimethylsilyl)propoxy]phenoxy}acenaphthylenequinone bis(2,6-diisopropyl)anilide support e1 The route is as follows:

[0036]

[0037] The specific steps are as follows:

[0038] References for the synthesis of 5-bromoacenaphthoquinone [J Am Chem Soc,2013,135(46):17469], References for the synthesis of 4-allyloxyphenol a1 [J Med Chem,2011,54(13): 4659]

[0039] Synthesis of 5-(4-allyloxyphenoxy)acenaphthylenequinone b1:

[0040] Add 12.7g (48.6mmol) of 5-bromoacenaphthoquinone, 13.8g (100mmol) K to a 100ml reaction flask 2 CO 3 , 33ml dry DMF, start stirring. During the stirring process, 15g (100mmol) of a1 was added and reacted at 60°C. Chromatography chromatography tracked the reaction of the reactants to complete, and the reaction was stopped. Pour the reacted dark brown solution into saturated NaCl solution to become a brown suspension, extract with dichloromethane for 2-3 times, and use anhydrous MgSO for t...

Example Embodiment

[0049] Example 2

[0050] Synthesis and preparation of 5-{4-[3-(silica dioxy methyl silicon) propoxy] phenoxy} acenaphthylene quinone bis(2,6-diisopropyl) aniline support The route is as follows:

[0051]

[0052] 5-{4-[3-(Dichloromonomethylsilyl)propoxy]phenoxy}acenaphthylenequinone bis(2,6-diisopropyl)aniline f1 and the preparation process of compound d1 in Example 1 Same, where dichloromonomethylsilane is used instead of monochlorodimethylsilane; SiO 2 / MgCl 2 The preparation process of the composite carrier is the same as in Example 1, wherein MgCl 2 And SiO 2 The masses are all 0.5 g; the specific synthesis steps of the load g1 are the same as the synthesis steps of the load e1 in Example 1. Elemental analysis of load g1: C, 22.12%; N, 1.10%.

Example Embodiment

[0053] Example 3

[0054] Synthesis of 5-{4-[3-(silica trioxysilyl)propoxy]phenoxy}acenaphthylene quinone bis(2,6-diisopropyl)anilide support i1

[0055] The preparation route is as follows:

[0056]

[0057] 5-{4-[3-(Trichlorosilyl)propoxy]phenoxy}acenaphthylenequinone bis(2,6-diisopropyl)anilide h1 is prepared in the same way as compound d1 in Example 1, wherein Use trichlorosilane instead of monochlorodimethylsilane; SiO 2 / MgCl 2 The preparation process of the composite carrier is the same as in Example 1, wherein MgCl 2 And SiO 2 The mass ratio is equal to 5; the specific synthesis steps of the load i1 are the same as the synthesis steps of the load e1 in Example 1. Elemental analysis of load i1: C, 33.66%; N, 1.67%.

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Abstract

The invention relates to a supported alpha-diimine compound and an application of the supported alpha-diimine compound in olefin polymerization. The compound has the following structural formula as shown in the specification, wherein R1 and R2 are identical or different C6-C60 aromatic alkyl; R3 is H or C1-C20 alkyl; R4 is C1-C20 alkyl; R5 is C1-C20 alkoxyl or a chlorine atom; n is 1, 2, 3, 4, 5, 6 or 7; an alpha-diimine compound reacts with a carrier to be supported on the carrier in a covalent bonding manner to form the supported alpha-diimine compound; the supported alpha-diimine compound is matched with a metal compound of nickel (II) and palladium (II) to form a supported alpha-diimine metal complex; and the supported alpha-diimine compound is applied to the olefin polymerization as a main catalyst and can regulate polymerization activity, as well as a molecular chain structure, molecular weight and distribution of a polymer.

Description

technical field [0001] The invention relates to the field of olefin catalytic polymerization, in particular to a supported α-diimine compound and its application in olefin polymerization. Background technique [0002] Polyolefin materials synthesized by coordination polymerization are widely used in many fields of production and life because of their excellent performance in various aspects and low price. The core of polyolefin preparation technology is the catalyst system. The continuous research and development of catalyst system has promoted the development of high-performance polyolefin preparation technology. On the basis of traditional Ziegler-Natta catalysts, people have successively developed metallocene catalysts and non-metallocene catalysts. Non-metallocene catalysts are further divided into pre-transition non-metallocene catalysts and post-transition non-metallocene catalysts. In 1995, Brookhart et al. reported a post-transition metal catalyst (J Am Chem Soc, 1...

Claims

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Application Information

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IPC IPC(8): C07F7/08C07F15/00C07F15/04C08F4/70C08F110/02C08F110/06C08F210/16C08F110/08C08F110/14C08F232/08C08F212/36
Inventor 侯彦辉韩伟伟杨敏翟飞帆胡博文路晓敏李琴
Owner TIANJIN POLYTECHNIC UNIV
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