中国塑料 ›› 2025, Vol. 39 ›› Issue (11): 59-65.DOI: 10.19491/j.issn.1001-9278.2025.11.010

• 材料与性能 • 上一篇    下一篇

MIL⁃53⁃OHx催化合成聚对苯二甲酸乙二醇酯的研究

王继1(), 白威2(), 武文慧3, 王庆印2, 王公应2   

  1. 1.山西工程科技职业大学,山西 晋中 030619
    2.中国科学院成都有机化学研究所,成都 610041
    3.山西警察学院,太原 030401
  • 出版日期:2025-11-26 发布日期:2025-11-21
  • 通讯作者: 白威 (1980-),男,研究员,主要从事聚合物改性领域的研究,baiwei@cioc. ac. cn
    E-mail:wangji1@sxgkd.edu.cn;baiwei@cioc. ac. cn
  • 作者简介:王继(1995-),男,讲师,主要从事聚酯合成用催化剂的研究,wangji1@sxgkd.edu.cn

Synthesis of poly(ethylene terephthalate) catalyzed by MIL⁃53⁃OHx

WANG Ji1(), BAI Wei2(), WU Wenhui3, WANG Qingyin2, WANG Gongying2   

  1. 1.Shanxi Vocational University of Engineering Science and Technology,Jinzhong 030619,China
    2.Chengdu Institute of Organic Chemistry,Chinese Academy of Sciences,Chengdu 610041,China
    3.Shanxi Police College,Taiyuan 030401,China
  • Online:2025-11-26 Published:2025-11-21
  • Contact: BAI Wei E-mail:wangji1@sxgkd.edu.cn;baiwei@cioc. ac. cn

摘要:

制备了具有不同—OH比例的Al⁃MIL⁃53⁃OHx材料,并通过红外光谱、热重分析、X射线衍射、透射电子显微镜和N2低温物理吸附对材料的热稳定性和结构进行了表征。同时考察了不同Al⁃MIL⁃53⁃OHx用量、不同缩聚时间以及不同缩聚温度对于聚对苯二甲酸乙二醇酯(PET)黏度以及分子量的影响。结果表明,羟基的引入有助于缩短反应时间。

关键词: MIL?53?OHx, 聚对苯二甲酸乙二醇酯, 缩聚反应, 铝基催化剂, 黏度

Abstract:

This study reports the synthesis of Al⁃MIL⁃53⁃OHx materials with varying hydroxyl group ratios and their application as catalysts in the production of poly(ethylene terephthalate) (PET). The catalysts were characterized for their thermal stability and structure using techniques including Fourier⁃transform infrared spectroscopy, thermogravimetric analysis, X⁃ray diffraction, transmission electron microscopy, and N₂ low⁃temperature physisorption. The influence of key synthesis parameters, namely catalyst dosage, polycondensation time, and polycondensation temperature, on the intrinsic viscosity and molecular weight of the resulting PET was systematically investigated. The results demonstrated that the introduction of hydroxyl groups into the MIL⁃53 framework significantly enhanced catalytic activity, leading to a substantial reduction in the required reaction time.

Key words: MIL?53?OHx, poly (ethylene terephthalate), polycondensation reaction, aluminum?based catalyst, viscosity

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