Chinese Journal of Organic Chemistry ›› 2024, Vol. 44 ›› Issue (10): 3178-3184.DOI: 10.6023/cjoc202405045 Previous Articles     Next Articles

ARTICLES

二氧化碳基可再加工微交联热固性聚脲的合成

黄文翰a,b,†, 姜山c,†, 李慧a,b, 赵凤玉a,b,*(), 程海洋a,b,*()   

  1. a 中国科学院长春应用化学研究所 电分析化学国家重点实验室 吉林省绿色化学与过程重点实验室 长春 130022
    b 中国科学技术大学应用化学与工程学院 合肥 230026
    c 上海大学材料科学与工程学院 上海 200444
  • 收稿日期:2024-05-29 修回日期:2024-08-22 发布日期:2024-09-10
  • 作者简介:共同第一作者
  • 基金资助:
    国家自然科学基金(22172155)

Synthesis of CO2-Based Re-processable Slight Cross-Linked Polyurea Thermosets

Wenhan Huanga,b,†, Shan Jiangc,†, Hui Lia,b, Fengyu Zhaoa,b,*(), Haiyang Chenga,b,*()   

  1. a Jilin Provincial Key Laboratory of Green Chemistry and Process, State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
    b School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026
    c School of Materials Science and Engineering, Shanghai University, Shanghai 200444
  • Received:2024-05-29 Revised:2024-08-22 Published:2024-09-10
  • Contact: *E-mail: zhaofy@ciac.ac.cn;hycyl@ciac.ac.cn
  • About author:These authors contributed equally to this work
  • Supported by:
    National Natural Science Foundation of China(22172155)

The use of CO2 as monomer to synthesize polymer materials is an important and potential applications topic from the viewpoint of green and sustainable chemistry. A new kind of CO2-based polyurea (PUa) was synthesized by polycondensation of CO2 with 4,7,10-trioxa-1,13-tridecanediamine and tris(2-aminoethyl)amine (TAEA). TAEA was used as cross-link reagent. The mechanical properties of PUa were significantly improved by inserted the crosslink agent of TAEA. The formed slight cross-linked PUa exhibited excellent mechanical properties with tensile strength of 26.8 MPa, elongation at break of 34% and Young’s modulus of 351 MPa. Moreover, it could be remolded for 3 times without obvious change in the mechanical properties, which are ascribed to the hydrogen bonding interaction among the main chains and the slight cross-linked structure. In addition, the synthesized CO2-based PUa is of outstanding thermal performance with an initial decomposition temperature above 300 ℃, besides it is tolerance for a variety of organic solvents.

Key words: CO2, polyurea, non-isocyanate, re-processable, thermoset, slight cross-linking