Microspheric ionomer having crosslinking structure, and preparation method and application thereof

A technology of cross-linked structure and ionomer, applied in the field of microspherical ionomer and its preparation, to achieve the effect of comprehensive utilization and simple preparation process

Active Publication Date: 2019-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is still room for improvement in the nucleation effect of the polymer produced by the above method on PET.

Method used

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  • Microspheric ionomer having crosslinking structure, and preparation method and application thereof
  • Microspheric ionomer having crosslinking structure, and preparation method and application thereof
  • Microspheric ionomer having crosslinking structure, and preparation method and application thereof

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preparation example Construction

[0023] The method for preparing the microspherical ionomer with cross-linked structure provided by the invention comprises:

[0024] (1) In an organic solvent, in the presence of the first part of the initiator, the maleic anhydride and the first part of the monomer M are contacted to react, and then the solution containing the cross-linking agent is introduced to continue the reaction, wherein the cross-linking agent-containing The solution contains crosslinking agent, optional second part of monomer M and optional second part of initiator, monomer M is provided by carbon four and / or carbon five;

[0025] (2) In the presence of water, the product obtained in step (1) is contacted with an alkali for salinization (or hydrolysis).

[0026] The amount ratio of maleic anhydride to monomer M (mixed olefins, carbon four and / or carbon five) can be a conventional choice, but in a preferred embodiment of the present invention, relative to the maleic anhydride of 100mol, the first part ...

Embodiment 1

[0048] This example is used to illustrate the microspherical ionomer (or ionomer microsphere) with a cross-linked structure of the present invention and its preparation method.

[0049] (1) mixed butene gas is composed of: trans-2-butene, 40.83% by weight; cis-2-butene, 18.18% by weight; n-butane, 24.29% by weight; n-butene, 9.52% by weight; isobutene, 2.78% by weight %; others, 4.4% by weight. Maleic anhydride 100g and azobisisobutyronitrile 6g are dissolved in 800mL isoamyl acetate to form a solution one, and the mixed butenes (the moles of effective components (terminal olefins) in maleic anhydride and mixed olefins) that pass into metered The ratio is 1:1), under nitrogen atmosphere, react at 70°C and 0.5MPa for 1 hour;

[0050] (2) 25 g of divinylbenzene was dissolved in 200 mL of isoamyl acetate to form solution 2. Solution 2 was added to the reaction system by a plunger pump and added dropwise for 2 hours. After the addition was completed, the reaction system was kept ...

Embodiment 2

[0054] This example is used to illustrate the ionomer microspheres of the present invention and its preparation method.

[0055](1) Maleic anhydride 100g and azobisisobutyronitrile 5g are dissolved in 800mL isoamyl acetate to form solution one, and the mixed butenes (composition is the same as in Example 1, maleic anhydride and mixed olefins) The molar ratio of effective components (terminal olefins) is 1:1), under nitrogen atmosphere, react at 70°C and 0.4MPa for 2 hours;

[0056] (2) 15 g of divinylbenzene was dissolved in 200 mL of isoamyl acetate to form solution 2. Solution 2 was added to the reaction system by a plunger pump and added dropwise for 2 hours. After the addition was completed, the reaction system was kept warm for 3 hours.

[0057] (3) Release the pressure after the reaction, add 200 mL (15 wt%) of sodium acetate aqueous solution, and react at 100° C. for 3 hours. After the reaction, the system is statically separated, the heavy phase is centrifuged at 5000...

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Abstract

The invention relates to the field of high molecular materials and discloses a microspheric ionomer having crosslinking structure, and a preparation method and an application thereof. The preparationmethod includes: (1) in an organic solvent, contacting maleic anhydride and a first part of a monomer M in the presence of a first part of an initiator for a reaction, then introducing a solution containing a crosslinker to continuously perform the reaction, wherein the solution contains the crosslinker, optionally a second part of the monomer M, and optionally a second part of the initiator, andthe monomer M is supplied by a C4 and / or a C5 compound; (2) performing salinization, in the presence of water, on the product in the step (1) by contacting with alkali. The invention also discloses anapplication of the ionomer as a nucleating agent for modification of PET. The ionomer has excellent nucleating effect on PET. The preparation method is simple, green and environment-friendly.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a microspherical ionomer with a crosslinked structure and a preparation method and application thereof. Background technique [0002] my country's petrochemical industry is rich in carbon four (C4) and carbon five (C5) resources, but due to technical reasons, the utilization rate of C4 and C5 has been relatively low. With the changes in the pattern of petrochemical resources, C4 and C5 fractions are becoming more and more valuable. Effective use of C4 and C5 resources is of great significance to our country where resources are scarce. [0003] Ionic polymers, referred to as ionomers or ionomers, are polymer materials with a small amount of ionic groups on the polymer chain, and the molar content of ionic groups does not exceed 15%. Ionomers are a perfect combination of inorganic ions and organic molecules. Due to the introduction of ionic groups, there are special interactions b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F222/06C08F210/08C08F210/10C08F267/04C08F212/36C08F8/44C08L67/02C08L35/00
Inventor 宋文波袁浩尹华毕福勇胡慧杰李德展
Owner CHINA PETROLEUM & CHEM CORP
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