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Preparation method of olefin-olefin alcohol copolymer

A technology for copolymers and olefin alcohols, which is applied in the field of preparation of copolymers and can solve the problems of solvent removal for polymer transport, difficulty in granulation, scaling and the like

Active Publication Date: 2020-05-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no matter what method is used for polymerization in the prior art, the obtained polymer is a viscous block solid, which is easy to foul in the polymerization equipment, which brings troubles to the transportation of the polymer, solvent removal, granulation, etc. come difficult

Method used

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  • Preparation method of olefin-olefin alcohol copolymer
  • Preparation method of olefin-olefin alcohol copolymer
  • Preparation method of olefin-olefin alcohol copolymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The 1L stainless steel polymerization kettle equipped with mechanical stirring was continuously dried at 130° C. for 6 h, vacuumed while hot and replaced with nitrogen three times. Inject 500 mL of hexane into the polymerization system, and simultaneously add 13.2 mg (20 μmol) of complex 1 shown in formula (1), 5.1 mL (30 mmol) of 2-methyl-2-hydroxyl-7-octene, 30 mL of AlEt 3 (1.0 mol / L hexane solution), at 25° C., maintaining 10 atm of ethylene pressure, and stirring 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.

[0064]

Embodiment 2

[0066] The 1L stainless steel polymerization kettle equipped with mechanical stirring was continuously dried at 130° C. for 6 h, vacuumed while hot and replaced with nitrogen three times. Inject 500 mL of hexane into the polymerization system, and simultaneously add 13.2 mg (20 μmol) of complex 1 shown in formula (1), 5.1 mL (30 mmol) of 2-methyl-2-hydroxyl-7-octene, 30 mL of AlEt 3 (1.0 mol / L hexane solution), 0.5 mL diethylzinc (1 mol / L hexane solution), at 25°C, keep the ethylene pressure of 10 atm, 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

[0068] The 1L stainless steel polymerization kettle equipped with mechanical stirring was continuously dried at 130° C. for 6 h, vacuumed while hot and replaced with nitrogen three times. Inject 500 mL of hexane into the polymerization system, and simultaneously add 13.2 mg (20 μmol) of complex 1 shown in formula (1), 5.1 mL (30 mmol) of 2-methyl-2-hydroxyl-7-octene, 30 mL of AlEt 3 (1.0 mol / L hexane solution), at 80° C., maintaining 10 atm of ethylene pressure, and stirring 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.

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Abstract

The invention provides a preparation method of an olefin-olefin alcohol copolymer. The preparation method comprises the following steps: in the presence of an alkane solvent, carrying out a contact reaction on olefin, olefin alcohol represented by a formula I, a catalyst and an optional chain transfer agent to obtain the copolymer, wherein in the formula I, L1-L3 are respectively and independentlyselected from H and C1-C30 alkyl, L4 is C1-C30 alkylene with a side group, the C1-C30 alkyl is optionally substituted by a substituent, and preferably the substituent is one or a plurality of materials selected from halogen, C1-C10 alkyl, C1-C10 alkoxy, C6-C10 aryl, cyano and hydroxyl. The prepared copolymer is good in form and has a good prospect in industrial application.

Description

technical field [0001] The invention relates to the field of preparation of copolymers, in particular to a preparation method of olefin-olefin alcohol copolymers. Background technique [0002] Polyolefin products are low in price, excellent in performance and wide in application. Under the condition of retaining the excellent physical and chemical properties of the original 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 , endowing it with new properties that its raw materials do not have. [0003] The more mature methods for preparing copolymers containing polar groups mainly include copolymerization and grafting. Most of the copolymerization methods use high-pressure free radical polymerization to promote the copolymerization of olefins and olefin monomers containing polar groups. Although high-pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F210/02C08F216/04C08F4/70
CPCC08F210/02C08F216/04C08F4/7032
Inventor 高榕郭子芳周俊领张师军张晓帆李岩林洁傅捷马冬
Owner CHINA PETROLEUM & CHEM CORP
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