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Catalytic cycloolefin copolymer composition and preparation method thereof

A technology of cyclic olefin copolymer and composition, applied in the field of C08F, can solve the problems of low cyclic olefin insertion rate, increase, waste cost of raw materials, etc., achieve the effect of narrow molecular weight distribution, reduce energy consumption, and increase reaction yield

Pending Publication Date: 2022-05-24
广东新华粤石化集团股份公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the current catalyst-catalyzed cycloolefin copolymerization process, when the cycloolefin content and chain vinyl content are large, it is difficult to form a copolymer with a higher molecular weight and a narrower molecular weight distribution in a short time, and the insertion rate of the cycloolefin Low, also caused the waste of raw materials and the increase of cost

Method used

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  • Catalytic cycloolefin copolymer composition and preparation method thereof
  • Catalytic cycloolefin copolymer composition and preparation method thereof
  • Catalytic cycloolefin copolymer composition and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0059] Embodiment 1 provides the preparation method of cyclic olefin copolymer and the prepared copolymer, comprising: adding solvent toluene, a certain amount of norbornene monomer (b), and 3 mL of MAO to a 500 mL reaction kettle in a nitrogen atmosphere Toluene solution (10 wt %), the concentration of monomer (b) was 2.0 mol / L, respectively, and the total volume was kept at 200 mL. Start stirring, set the rotation speed at 500 r / min, then feed ethylene monomer (a), increase the pressure to 0.5 MPa, and equilibrate at 50° C. for 30 minutes. Then, 2 mL containing 3 μmol of catalyst (R 10 , R 11 The toluene solution of Ph, 2-Me-Ph), respectively, started the polymerization reaction, and the temperature and pressure of the system were kept unchanged during the polymerization. After the reaction was carried out for 10 min, the stirring was stopped, the temperature of the reactor was lowered to room temperature, the pressure was released, and the reaction solution was added to e...

Embodiment 6

[0067] Embodiment 6 provides a preparation method of a cyclic olefin copolymer and the prepared copolymer. The polymerization conditions are that the monomer a is ethylene; the monomer b is norbornene, the concentration: 2.0mol / L, and the concentration of the monomer c: 0.2 mol / L, polymerization temperature: 50 °C, polymerization pressure: 0.5 MPa, polymerization time: 10 min, catalyst dosage: 3 μmol.

[0068] Examples 7-10 provide the preparation method of cyclic olefin copolymer and the prepared copolymer.

Embodiment 11

[0076] Embodiment 11 provides a preparation method of a cyclic olefin copolymer and the prepared copolymer. The polymerization conditions are that monomer a is ethylene; monomer b is norbornene, concentration: 2.0 mol / L; polar monomer is 5 -Hydroxy-2-norbornene (monomer c), concentration: 0.2 mol / L; polymerization temperature: 50° C., polymerization pressure: 0.5 MPa, polymerization time: 10 min, catalyst dosage: 3 μmol. The specific implementation is the same as that of Example 1.

[0077] Embodiment 12-14 provides the preparation method of cyclic olefin copolymer and the prepared copolymer, the difference lies in catalyst structure, polar monomer concentration and structure, and its specific implementation is the same as embodiment 11, and the obtained polymer weight , the glass transition temperature of the polymer, and the content of monomer b / c in the polymer are listed in Table 3.

[0078] table 3

[0079]

[0080]

[0081] Embodiments 17-20 provide methods for...

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Abstract

The invention relates to C08F, in particular to a catalytic cycloolefin copolymer composition and a preparation method thereof. The preparation raw materials of the composition comprise a chain-shaped vinyl monomer a, a cyclic vinyl monomer and a catalyst e, the copolymer provided by the invention can be used for the reaction of copolymers with different cyclic vinyl monomer contents by selecting the proper catalyst e and controlling the types of the raw materials, and has good tolerance even if a polar cyclic monomer is added, so that the copolymer can be applied to the reaction of the copolymers with different cyclic vinyl monomer contents. According to the present invention, the influence on the catalytic activity is avoided, such that the probability of the copolymerization and the insertion of the cyclic ethylene is improved so as to obtain the copolymerization with different cyclic vinyl unit contents from low to high, the high molecular weight polymer can be obtained in the short time and the short temperature, the cost is reduced, and the energy consumption is reduced.

Description

technical field [0001] The present invention relates to CO8F, and more particularly, the present invention relates to a catalytic cyclic olefin copolymer composition and a preparation method thereof. Background technique [0002] Cyclic olefin copolymer (COC) is a copolymer polymer with a cyclic olefin structure. It has high water vapor barrier properties, low shrinkage, good optical properties and temperature resistance. It is used in various fields, such as packaging and other fields. , wherein in the copolymerization process, in order to increase the content of cycloolefin units, it is necessary to add a larger proportion of cycloolefin monomers, which reduces the polymerization activity and increases the production cost and energy consumption. [0003] CN112679642A provides a cyclic olefin copolymer and a preparation method thereof. The cyclic olefin copolymer is prepared by copolymerizing a styrene monomer and a cyclic olefin monomer, and the activity of the polymerizat...

Claims

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Application Information

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IPC IPC(8): C08F232/08C08F4/642
CPCC08F232/08C08F4/64017
Inventor 廖恒陈鹏州郑亚尚左洪亮刘阳黄志健苑仁旭
Owner 广东新华粤石化集团股份公司
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