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Poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate) and preparation method and article thereof

A technology of dimethyl furandicarboxylate and furandicarboxylate is applied in the field of poly-2,5-furandicarboxylate-1,4-succinate neopentyl glycol and its preparation, and can solve the problems of brittleness and insufficient barrier properties , insufficient thermal stability, etc., to achieve the effect of being controllable, promoting sustainable development and easy to implement

Active Publication Date: 2019-04-05
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, artificially synthesized degradable polymer materials mainly include polylactic acid, polyglycolic acid, polybutylene terephthalate adipate, polybutylene succinate, etc., and these materials still have various problems. Problems, such as brittleness, insufficient barrier properties, insufficient thermal stability, etc., have certain limitations

Method used

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  • Poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate) and preparation method and article thereof
  • Poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate) and preparation method and article thereof
  • Poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate) and preparation method and article thereof

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preparation example Construction

[0038] The preparation method of poly-2,5-furandicarboxylate-1,4-butanedioic acid neopentyl glycol ester provided by the invention comprises:

[0039] S1, mixing 2,5-furandicarboxylic acid or its diester, 1,4-butanedioic acid or its diester, neopentyl glycol and a catalyst, and performing an esterification reaction to obtain product A and product B;

[0040] The structural formula of the product A is shown in the following formula (2):

[0041]

[0042] The structural formula of the product B is shown in the following formula (3):

[0043]

[0044] S2, subjecting the product A and the product B to a polycondensation reaction to obtain poly-2,5-furandicarboxylic acid-1,4-butanedioic acid neopentyl glycol ester.

[0045]In step S1, the molar ratio of the 2,5-furandicarboxylic acid or its diester to 1,4-butanedioic acid or its diester is 1:9 to 9:1, and the 2,5-furandicarboxylic acid di The molar ratio of the sum of methyl ester or its diester and 1,4-butanedioic acid or ...

Embodiment 1

[0068] In the poly-2,5-furandicarboxylic acid-1,4-succinate neopentyl glycol ester of this embodiment, m:n=6:4, which is defined as PNSF40, and the specific preparation process is as follows:

[0069] (1) Esterification reaction: Dimethyl 2,5-furandicarboxylate, dimethyl 1,4-succinate, new Pentylene glycol, tetrabutyl titanate, and zinc acetate were added to the reactor. Under the protection of high-purity nitrogen, react at 180° C. for 5 h until the content of methanol produced exceeds 95% of the theoretical value, and intermediate products including product A and product B are obtained.

[0070] (2) Polycondensation reaction: continue to add 10 mg of antimony trioxide and 15 mg of heat stabilizer triphenyl phosphate into the reactor. Then reduce the pressure to 1000Pa, and then reduce the pressure to less than 20Pa after 30min, and react at 200°C for 20h to obtain a light yellow PNSF40 product.

[0071] NMR, infrared, DSC, TGA, mechanical properties, barrier properties, de...

Embodiment 2

[0079] In the poly-2,5-furandicarboxylic acid-1,4-succinate neopentyl glycol ester of this embodiment, m:n=5:5, which is defined as PNSF50, and the specific preparation process is as follows:

[0080] (1) Esterification reaction: Dimethyl 2,5-furandicarboxylate, dimethyl 1,4-succinate, neopentyl glycol with molar amounts of 0.05 moles, 0.05 moles, 0.25 moles and 10 mg respectively , Zinc acetate was added to the reactor. Under the protection of high-purity nitrogen, react at 200° C. for 2 h until the content of methanol produced exceeds 95% of the theoretical value, and intermediate products including product A and product B are obtained.

[0081] (2) Polycondensation reaction: Continue to add 15 mg of isopropyl titanate and 15 mg of heat stabilizer triphenyl phosphate to the reactor, then reduce the pressure to 1000 Pa, then reduce the pressure to less than 20 Pa after 30 minutes, and react at 260 ° C for 3 hours , a pale yellow PNSF50 product was obtained.

[0082] NMR, in...

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Abstract

The invention relates to poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate) and a preparation method and article thereof. The poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate) has astructural formula shown as formula (1) that is shown in the description, wherein both n and m are integers, with m:n=9:1 to 1:9. The preparation method of the poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate) includes: mixing 2,5-furandicarboxylic acid or its diester, 1,4-succinic acid or its diester, neopentyl glycol and a catalyst, and carrying out esterification to obtain product Aand product B, wherein the product A has a structural formula shown as formula (2) which is shown in the description, the product B has a structural formula shown as formula (3) that is shown in the description; subjecting the product A and the product B to condensation polymerization to obtain the poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate). The preparation method herein is simple; the prepared poly(neopentyl glycol 2,5-furandicarboxylate-1,4-succinate) has excellent gas barrier property and mechanical properties, can biodegrade under lipase catalysis, is suitable for the preparation of film, laminates and other articles, and is widely applicable.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to poly-2,5-furandicarboxylic acid-1,4-butanedioic acid neopentyl glycol ester, a preparation method and products thereof. Background technique [0002] With the development of society, the environmental protection requirements for polymer materials are getting higher and higher. The development of degradable polymer materials can effectively alleviate the problem of white pollution caused by polymer materials and meet the contemporary requirements for environmental protection of polymer materials. However, at present, artificially synthesized degradable polymer materials mainly include polylactic acid, polyglycolic acid, polybutylene terephthalate adipate, polybutylene succinate, etc., and these materials still have various problems. Problems, such as brittleness, insufficient barrier properties, insufficient thermal stability, etc., have certain limitations. Contents of the in...

Claims

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Application Information

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IPC IPC(8): C08G63/676
CPCC08G63/676
Inventor 胡晗张若愚朱锦
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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