Preparation and Characterization of Dual Reversible Crosslinking Interpenetrating Polymer Networks

被引：0
|
作者：
Li Y. [1 ,2 ]
Lei D. [1 ,2 ]
Jiang X. [1 ,2 ]
Deng J. [1 ]
Pan Y. [1 ]
Zheng Z. [1 ]
Ding X. [1 ]
机构：
[1] Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu
[2] University of Chinese Academy of Sciences, Beijing
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2021年 / 37卷 / 06期
关键词：
Dynamer; Interpenetrating polymer network; Multiresponsive; Reversible crosslink;
D O I：
10.16865/j.cnki.1000-7555.2021.0154
中图分类号：
学科分类号：
摘要：
Firstly, polycaprolactone-terpyridine (PCL-Tpy) and polytetrahydrofuran- anthracene(PTMEG-An) were obtained by modified with terpyridine and anthracene respectively as linear structure polyurethanes. After mixing two polymers, adding metal ions and then applying UV light irradiation to the solution of prepolymers, dynamic interpenetrating polymer network (IPN) polyurethane was established. There were thermally reversible metal-ligand interactions and photo reversible cycloaddition of anthracene formed within samples as crosslinking points of two phases. Chemical structures of crosslinking agent and prepolymers were characterized through FT-IR and NMR. The results of ultraviolet visible(UV-Vis) spectrophotometer, DSC, gel content and swelling ratio demonstrate that the crosslinking degree of PTMEG-An goes up as the irradiation protracts. Moreover, DSC indicates the diverse strength, temperature range of Zn2+, Sn2+ and Ni2+ as center of coordination and two kinds of reversible crosslinks form in IPN successfully. These data turn out that the versatility of molecular structure can be regulated facilely through multi stimulus of ultraviolet light and heat. © 2021, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：1 / 7and16
页数：715
相关论文
共 17 条
  • [1] Lehn J M., Dynamers: dynamic molecular and supramolecular polymers, Progress in Polymer Science, 30, pp. 814-831, (2005)
  • [2] Montarnal D, Capelot M, Tournilhac F, Et al., Silica-like malleable materials from permanent organic networks, Science, 334, pp. 965-968, (2011)
  • [3] Rottger M, Domenech T, van der Weegen R, Et al., High-performance vitrimers from commodity thermoplastics through dioxaborolane metathesis, Science, 356, pp. 62-65, (2017)
  • [4] Zheng N, Xie T., Thermadapt shape memory polymer, Acta Polymerica Sinica, 11, pp. 1715-1724, (2017)
  • [5] Van Zee N J, Nicolafl R., Vitrimers: permanently crosslinked polymers with dynamic network topology, Progress in Polymer Science, 104, (2020)
  • [6] Zou W, Dong J, Luo Y, Et al., Dynamic covalent polymer networks: from old chemistry to modern day innovations, Advanced Materials, 29, (2017)
  • [7] Shi X, Soule D, Mao Y, Et al., A multiscale chemomechanics theory for the solvent-Assisted recycling of covalent adaptable network polymers, Journal of the Mechanics and Physics of Solids, 138, (2020)
  • [8] Chen Q, Yu X, Pei Z, Et al., Multi-stimuli responsive and multi-functional oligoaniline-modified vitrimers, Chemical Science, 8, pp. 724-733, (2017)
  • [9] Zhang H, Wu Y, Yang J, Et al., Superstretchable dynamic polymer networks, Advanced Materials, 31, (2019)
  • [10] Liu T, Zhao B, Zhang J., Recent development of repairable, malleable and recyclable thermosetting polymers through dynamic transesterification, Polymer, 194, (2020)
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