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Catalyst component for olefin polymerization and catalyst
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A technology of olefin polymerization and solid catalyst, applied in the field of monofunctional or multifunctional ketones or amines, which can solve the unsatisfactory balance of activity/isotacticity and other problems
Active Publication Date: 2014-07-16
沧州利和科技发展有限责任公司
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[0004] However, the activity / isotacticity balance of Ziegler-Natta catalyst components prepared with the above compounds for olefin polymerization is not satisfactory, so further research and development is required
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Embodiment 19
[0131] Example 19 Synthesis of Methoxymethyl-Fluorenic Acid-(9)-Methyl Ester
[0132] Step A: Under the protection of nitrogen, add 18g sodiumhydride, 50g fluorene, and 150mL toluene into a 1000mL three-necked flask, turn on mechanical stirring, raise the temperature to 125°C and reflux, keep the reaction for 4h; lower the temperature to 90°C, and slowly drop 146.1 into the flask g diethyl carbonate, drip in 1.5h, continue to react for 3h after dripping; cool to 20℃, slowly drip in a mixture of 60g concentrated hydrochloric acid and 75g water, and control the temperature not to exceed 40℃; filter to separate organic Wash the phase with water until it is neutral. The organic phase will be vortexed to obtain a reddish-brown liquid; the fluid obtained by the rotatory steaming will be refluxed with 157.4g of acetic acid and 63g of 10% hydrochloric acid overnight; the mixture will be reduced to 20℃, and the liquid will be separated; Then, 30% NaOH solution was added to adjust the pH ...
Embodiment 29
[0136] Example 29 Synthesis of methoxymethyl-fluorenic acid-(9)-ethyl ester
[0137] The synthesis steps are the same as in Example 1, except that the methanol in step B is replaced with ethanol. 1 H-NMR(CDCl 3 )δ (ppm): 1.17-1.20 (t, 3H, methyl hydrogen), 3.37 (s, 3H, ether methyl hydrogen), 3.791 (s, 2H, ether methylene hydrogen), 4.14 to 4.19 (m, 2H, ester methylene hydrogen), 7.26-7.42 (t, 2H, aromatic ring hydrogen), 7.42-7.44 (t, 2H, aromatic ring hydrogen), 7.73-7.74 (m, 4H, aromatic ring hydrogen).
Embodiment 39
[0138] Example 39 Synthesis of Ethoxymethyl-fluorenic acid-(9)-ethyl ester
[0139] The synthesis procedure is the same as in Example 1, except that the methanol in step B is replaced with ethanol, and the chloromethyl methyl ether in step C is replaced with chloromethyl ethyl ether. 1 H-NMR(CDCl 3 )δ(ppm): 1.13-1.17 (t, 3H, ether methyl hydrogen), 1.30-1.34 (t, 3H, ester methyl hydrogen), 3.40-3.46 (m, 2H, ether methylene hydrogen), 3.90 (s, 2H, ether methylene hydrogen), 4.12-4.16 (m, 2H, ester methylene hydrogen), 7.26-7.40 (t, 2H, aromatic ring hydrogen), 7.41-7.43 (t, 2H, aromatic ring Hydrogen), 7.72-7.74 (m, 4H, aromatic ring hydrogen).
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Abstract
The invention provides a solid catalyst component for olefin polymerization, which comprises Mg, Ti, halogen and electron donor, wherein the electron donor is selected from at least one of cyclosubstituted ether acid ester compounds disclosed as general formula (I) and at least one of ether, ester, ketone or amine single-function group or polyfunctional group electron donor compounds. The invention also provides a catalyst containing the solid catalyst component and application of the catalyst in olefin polymerization reaction, particularly application in propylene polymerization reaction. The specific cyclosubstituted-structure compounds contained in the solid catalyst component have a steric effect, can fix the spatial configuration of the ether and acid ester functional groups, and have active functions on participating in the formation of the catalyst activity center and enhancing the stereospecificity of the catalyst. The solid catalyst component with excellent activity can be used for obtaining the polymer product with high degree of isotacticity.
Description
Technical field [0001] The present invention relates to a CH containing at least two electron donor compounds 2 =CHR Solid catalyst component for olefin polymerization, where R is hydrogen or a hydrocarbon group containing 1-12 carbon atoms, one of the electron donor compounds is selected from special types of ring substituted ether ester compounds, and the other is selected Monofunctional or multifunctional electron donor compounds from ethers, esters, ketones or amines. Background technique [0002] The electron donor compound can change the nature of the active center of the Ziegler-Natta catalyst for olefin polymerization to the greatest possible extent, thereby changing the performance of the catalyst to the greatest extent. Therefore, the research of high-efficiency Ziegler-Natta catalyst is in a sense Seek better research on electron donors. At present, the research on internal electron donors at home and abroad mainly focuses on traditional fatty acid ester and aromatic ...
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