Chinese Journal of Polymer Science

, Volume 37, Issue 3, pp 197–207 | Cite as

Formation of Poly(ε-caprolactone) Networks via Supramolecular Hydrogen Bonding Interactions

  • Sen Xu
  • Pengfei Chang
  • Bingjie Zhao
  • Muhammad Adeel
  • Sixun ZhengEmail author


In this contribution, we reported a novel approach to crosslink poly(ε-caprolactone) (PCL) via supramolecular hydrogen bonding interactions. First, a series of octa-armed poly(ε-caprolactone) stars with polyhedral oligomeric silsesquioxane (POSS) cores were synthesized via the ring-opening polymerizations. Thereafter, the arm ends of organic-inorganic star-shaped PCLs were reacted with 2-(6-isocyanatohexylaminocarbonylamino)-6-methyl-4[1H]-pyrimidinone to obtain 2-ureido-4[1H]-pyrimidone (UPy)-terminated PCL stars. Notably, the UPy-terminated PCL stars were physically crosslinked, which was evidenced by means of dynamic mechanical thermal analysis (DMTA) and rheological analysis. Owing to the formation of the physically-crosslinked networks, the organic-inorganic PCL stars displayed significant shape memory properties with about 100% of shape recovery, which was in marked contrast to the PCL stars without UPy termini.


POSS PCL Physical crosslinking Shape memory properties 


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This work was financially supported by the National Natural Science Foundation of China (Nos. 51133003, 21274091, and 21774078).

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Copyright information

© Chinese Chemical Society, Institute of Chemistry (CAS) and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Sen Xu
    • 1
  • Pengfei Chang
    • 1
  • Bingjie Zhao
    • 1
  • Muhammad Adeel
    • 1
  • Sixun Zheng
    • 1
    Email author
  1. 1.Department of Polymer Science and Engineering and the State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong UniversityShanghaiChina

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