Glycol ester compound for preparing catalyst for olefinic polymerization

A compound and glycol ester technology, which is applied in the field of preparation of olefin polymerization catalysts, can solve the problems of low isotacticity of polymers, low catalytic activity of catalysts, and narrow molecular weight distribution of polymers, and achieves high stereospecificity and comprehensive performance. Excellent, wide molecular weight distribution effect

Inactive Publication Date: 2005-02-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the catalysts for olefin polymerization prepared using the above-mentioned dibasic aromatic carboxylic acid ester compounds, 1,3-diether compounds containing two ether groups and dibasic aliphatic carboxylic acid ester compounds are There are certain defects in practical applications, such as the catalytic activity of catalysts using dibasic aromatic carboxylic acid ester compounds is low, and the molecular weight distribution of t

Method used

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  • Glycol ester compound for preparing catalyst for olefinic polymerization
  • Glycol ester compound for preparing catalyst for olefinic polymerization
  • Glycol ester compound for preparing catalyst for olefinic polymerization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Synthesis of 2,3-diisopropyl-1,4-butanediol dibenzoate

[0034] (1) Synthesis of 2,3-diisopropyl-1,4-butanediol

[0035] The mixture of 5.1 g of lithium aluminum hydride and 120 ml of diethyl ether was cooled to 0°C, and at this temperature, a mixture of 11 g of diethyl 2,3-diisopropyl-1,4-succinate and 60 ml of diethyl ether was slowly added dropwise. After the addition, the temperature was raised to reflux and maintained at reflux for 1 hour. Then, it was lowered to 0°C, and 5ml of 15% sodium hydroxide solution and 20ml of water were added dropwise. After rising to room temperature, react for half an hour. After filtering, washing, drying and concentrating the organic phase, 8.4 g of product (76%) was obtained by distillation under reduced pressure. bp118°C / 0.1mmHg.

[0036] 1 H NMR (TMS, CDCl 3 , ppm): δ0.9 (14H), δ1.4 (2H), δ1.9 (4H), δ3.7 (2H).

[0037] (2) Synthesis of 2,3-diisopropyl-1,4-butanediol dibenzoate

[0038] 7.7 g of 2,3-diisopropyl-1,4-butanedi...

Embodiment 2

[0041] 2,3-Dimethyl-1,4-butanediol dibenzoate

[0042] With the preparation method of Example 1, the raw material 2,3-diisopropyl-1,4-diethyl succinate is changed to 2,3-dimethyl-1,4-diethyl succinate:

[0043] (1) 2,3-Dimethyl-1,4-butanediol

[0044] bp95℃ / 0.1mmHg; 1 H NMR (TMS, CDCl 3 , ppm): δ0.7~1.8 (8H), δ3.2~3.8 (4H), δ4.8 (2H).

[0045] (2) 2,3-Dimethyl-1,4-butanediol dibenzoate

[0046] 1 H NMR (TMS, CDCl 3 , ppm): 1.1-1.6 (8H), 5.0-5.5 (4H), 7.3-8.2 (10H).

Embodiment 3

[0048] 2,3-Diethyl-1,4-butanediol dibenzoate

[0049] With the preparation method of Example 1, the raw material 2,3-diisopropyl-1,4-diethyl succinate is changed to 2,3-diethyl-1,4-diethyl succinate:

[0050] (1) 2,3-diethyl-1,4-butanediol

[0051] bp110℃ / 0.1mmHg; 1 H NMR (TMS, CDCl 3 , ppm): 0.7-1.9 (12H), 3.3-3.9 (4H), 4.8 (2H).

[0052] (2) 2,3-Diethyl-1,4-butanediol dibenzoate

[0053] 1 H NMR (TMS, CDCl 3, ppm): 1.0-1.5 (10H), 2.1-2.3 (2H), 4.3-4.5 (4H), 7.3-8.1 (10H).

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Abstract

The invention refers to a kind of new diatomic alcohol ester, whose general equation is as the figure (1), its preparation method and its application to producing the catalyzer in the olefinic polymerization. The n should be no less than 3 and the R1 and R2 chosen from the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20 don't matter, whether they are same or different. So do the R3 to R6 and R1 to R4 and they are one of the hydrogen, halogen, the straight chain or branched chain alkyl, cycloalkyl, aryl, alkaryl, aralkyl, olefin or condensed nucleus aryl of C1 to C20. The radicals connected with different alpha carbon atoms among the R3 to R6 and R1 to R4 can form cycles and at least two of the R3 to R6 and R1 to R4 are not hydrogen or halogen. When the two groups of R3 and R4, R5 and R6 have a radical of hydrogen or halogen respectively and the R1 to R4 are all hydrogen, the rest radicals can not be methyl at the same time.

Description

technical field [0001] The present invention relates to a new glycol ester compound, the preparation method of the compound and the application of the compound in the preparation of olefin polymerization catalyst. technical background [0002] It is well known that solid titanium catalyst components based on magnesium, titanium, halogen and electron donors can be used for CH 2 = CHR Olefin polymerization, especially in the polymerization of α-olefins with 3 or more carbon atoms, polymers with higher yield and higher stereoregularity can be obtained, wherein the electron donor compound is in the catalyst component One of the essential ingredients, and with the development of internal electron donor compounds, polyolefin catalysts are constantly updated. At present, a large number of electron donor compounds have been disclosed, such as polycarboxylic acid, monocarboxylic acid ester or polycarboxylic acid ester, acid anhydride, ketone, monoether or polyether, alcohol, amine, ...

Claims

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Application Information

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IPC IPC(8): C07C69/616C08F4/00C08F10/00
Inventor 王军孙强高明智杜宏斌李季禹刘艳霞李新荣尹茂平
Owner CHINA PETROLEUM & CHEM CORP
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