Catalytic system for olefin- olefin alcohol polymerization, olefin-olefin alcohol copolymerization method and polymer

A catalytic system and olefin alcohol technology, applied in the field of polymers, can solve the problems of large amount of catalyst dosage of methylaluminoxane, influence of catalyst polymerization activity, etc., and achieve broad industrial application prospects, narrow molecular weight distribution, and good thermal stability. Effect

Inactive Publication Date: 2019-04-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when the catalyst is used to catalyze the copolymerization of ethylene and olefin alcohol, the amount of catalyst and methylaluminoxane (MAO) used is relatively large, and the polymerization temperature and the amount of comonomer added have a greater impact on the polymerization activity of the catalyst.

Method used

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  • Catalytic system for olefin- olefin alcohol polymerization, olefin-olefin alcohol copolymerization method and polymer
  • Catalytic system for olefin- olefin alcohol polymerization, olefin-olefin alcohol copolymerization method and polymer
  • Catalytic system for olefin- olefin alcohol polymerization, olefin-olefin alcohol copolymerization method and polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Dry the 1L stainless steel polymerization kettle equipped with mechanical stirring at 130 ° C for 6 hours, vacuumize while it is hot and use N 2 Air replacement 3 times. Inject 500 mL of hexane into the polymerization system, while adding 1.6 mg (2.5 μmol) of complex a, 3 mL of 10-undecen-1-ol, 15 mL of AlEt 3 (1.0 mol / L hexane solution), 3 mL of methylaluminoxane (MAO) (1.53 mol / L toluene solution), at 30°C, maintain 10 atm ethylene pressure, and stir for 30 min. Finally, it was neutralized with an ethanol solution acidified with 5 volume % hydrochloric acid to obtain a polymer. The polymerization activity and the performance parameters of the polymer are shown in Table 1.

Embodiment 2

[0090] Dry the 1L stainless steel polymerization kettle equipped with mechanical stirring at 130 ° C for 6 hours, vacuumize while it is hot and use N 2 Air replacement 3 times. Inject 500 mL of hexane into the polymerization system, and simultaneously add 1.6 mg (2.5 μmol) of complex a, 6 mL of 10-undecen-1-ol, 30 mL of AlEt 3 (1.0 mol / L hexane solution), 3 mL of methylaluminoxane (MAO) (1.53 mol / L toluene solution), at 30°C, maintain 10 atm ethylene pressure, and stir for 30 min. Finally, it was neutralized with an ethanol solution acidified with 5 volume % hydrochloric acid to obtain a polymer. The polymerization activity and the performance parameters of the polymer are shown in Table 1.

Embodiment 3

[0092] Dry the 1L stainless steel polymerization kettle equipped with mechanical stirring at 130 ° C for 6 hours, vacuumize while it is hot and use N 2 Air replacement 3 times. Inject 500 mL of hexane into the polymerization system, and simultaneously add 1.6 mg (2.5 μmol) of complex a, 6 mL of 10-undecen-1-ol, 30 mL of AlEt 3 (1.0 mol / L hexane solution), 3mL methylaluminoxane (MAO) (1.53 mol / L toluene solution), at 60°C, maintain 10atm ethylene pressure, and stir for 30min. Finally, it was neutralized with an ethanol solution acidified with 5 volume % hydrochloric acid to obtain a polymer. The polymerization activity and the performance parameters of the polymer are shown in Table 1.

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Abstract

The invention relates to the field of polymers, the invention discloses a catalytic system for olefin- olefin alcohol copolymerization, an olefin-olefin alcohol copolymerization method and a polymer.The catalytic system comprises the following components: (1) a main catalyst which is selected from at least one of the group consisting of metal complexes as shown in formula (I), in the formula (I),R1 and R4 are each selected from a C1-C30 hydrocarbyl group or heterohydrocarbyl group; R2 and R3 are each selected from a hydrogen atom, a chlorine atom, a C1-C20 hydrocarbon group, and the like, and R2 and R3 may be optionally bonded to each other into a ring. M is a Group VIII metal; X is selected from the group consisting of halogen, hydrocarbyl and alkoxy; n is an integer satisfying the valence of the M; 2) a cocatalyst; 3) an olefin; 4) an alkene alcohol; 5) an alkane solvent; and a 6) chain transfer agent; the polymer has a high alcohol content and weight average molecular weight, a narrow molecular weight distribution, and does not contain a carboxylic acid or an alkali metal salt, and the catalyst has better thermal stability and a higher polymerization activity.

Description

technical field [0001] The invention relates to the field of polymers, and more specifically, to a catalytic system for olefin-olefin alcohol copolymerization, an olefin-olefin alcohol copolymerization method, and an olefin-olefin alcohol polymer prepared by the copolymerization method. Background technique [0002] Polyolefin products are low in price, excellent in performance and wide in application. Under the condition of retaining the original excellent physical and chemical properties of polyolefin, introducing polar groups into the polyolefin molecular chain through chemical synthesis can improve its chemical inertness, printing and dyeing properties, wettability and compatibility with other materials properties, endowing it with new properties that its raw materials do not have. At present, most industries use high-pressure free radical polymerization to promote the direct copolymerization of olefins and polar monomers, such as ethylene-vinyl acetate, ethylene-methyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F210/02C08F216/04C08F2/38C08F4/70
CPCC08F210/02C08F2/38C08F4/7006C08F216/04C08F2500/03C08F2500/01
Inventor 高榕周俊领李岩刘东兵赖菁菁傅捷
Owner CHINA PETROLEUM & CHEM CORP
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