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

A technology of cross-linked structure and ionomer, which is applied in the field of microspherical ionomer and its preparation, and achieves the effects of simple preparation process, better nucleation effect and comprehensive utilization.

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

[0008] However, there is still room for improvement in the nucleation effect of the ionomer prepared 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

Examples

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preparation example Construction

[0033] The method for preparing ionomer provided by the invention comprises:

[0034](1) In an organic solvent, in the presence of an initiator, maleic anhydride, a mixed olefin and a crosslinking agent are contacted to react, and the mixed olefin is provided by carbon four and / or carbon five;

[0035] (2) The product obtained in step (1) is mixed with a base and a saturated monohydric alcohol for reaction.

[0036] In step (1) of the present invention, there is no special requirement to the consumption of each raw material used, preferably, with respect to the maleic anhydride of 100mol, the consumption of the mixed olefin calculated as terminal olefin is 50-200mol, more preferably 75 -100mol. Those skilled in the art can understand that maleic anhydride is a substance that provides the structural unit A represented by formula (1). The mixed olefin is a substance that provides the structural unit B represented by the formula (2).

[0037] Preferably, relative to 100 mol of...

Embodiment 1

[0055] 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.

[0056] (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. Pass the metered mixed butene (the molar ratio of maleic anhydride to the effective component (terminal olefin) in the mixed olefin is 1:1) into 1L of maleic anhydride containing concentration of 1mol / L, 0.05mol / L In the isoamyl acetate solution of nitrogen diisobutyronitrile and 0.2 mol / L divinylbenzene under a nitrogen atmosphere, the nitrogen gas was pressurized to a relative pressure of 0.5 MPa, and the system was reacted at 70° C. for 6 hours. The reacted system was centrifuged by a centrifuge at 5000 rad / min for 30 minutes to obtain cross-linked butene / maleic anhydride polymer mi...

Embodiment 2

[0060] This example is used to illustrate the ionomer microspheres of the present invention and its preparation method.

[0061] (1) The metered mixed butene (the molar ratio of maleic anhydride to the effective component (terminal olefin) in the mixed olefin is 1:0.75, and the composition is the same as in Example 1) is passed into 1L of maleic anhydride containing a concentration of 1mol / L. Toric anhydride, 0.01mol / L azobisisobutylcyanide, and 0.2mol / L divinylbenzene are in the isoamyl acetate solution under a nitrogen atmosphere, and the nitrogen gas is pressed to a relative pressure of 0.4MPa, and the system is set at 60 °C for 12 hours. The reacted system was centrifuged by a centrifuge at 5000 rad / min for 30 minutes to obtain cross-linked butene / maleic anhydride polymer microspheres, washed with methanol, purified, and vacuum-dried.

[0062] (2) 50 g of cross-linked butene / maleic anhydride polymer microspheres and 15.4 g of sodium ethylate (relative to every mole of mal...

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Abstract

The invention relates to the field of high molecular materials and discloses a microspheric ionomer having a crosslinking structure, and a preparation method and an application thereof. The ionomer contains a structural unit A represented as the formula (1), a structural unit B supplied by mixed olefins, and a crosslinking structure supplied by a crosslinker; wherein M1 and M2 are independently metal cations or C1-C20 saturated alkyl groups. The mixed olefins are supplied by C4 and / or C5 compounds. The invention also discloses a method of preparing the ionomer and the ionomer prepared by the method, wherein the method includes contacting maleic anhydride, the mixed olefins and the crosslinker for a reaction; and mixing the reaction product with alkali and saturated monohydric alcohol to perform a reaction. The invention also discloses an application of the ionomer, as a nucleating agent, for modifying PET. The ionomer has excellent nucleating effect on the PET, is simple in preparationmethod and is 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): C08F222/06C08F210/08C08F210/10C08F212/36C08F8/44C08L67/02C08L35/00
Inventor 宋文波袁浩刘振杰乔金樑张晓萌李德展
Owner CHINA PETROLEUM & CHEM CORP