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Synthesis and characterization of flexible and strong polyurethane using PPG-βCD-polyrotaxane as a chain extender

PUBLISHED July 03, 2023 (DOI: https://doi.org/10.54985/peeref.2307p2938883)



Jihyun Lee1 , Sumin Kwak1 , Md Hasan Turabee1 , Kyungman Choi2 , Ildoo Chung1
  1. Pusan National University
  2. Korea Institute of Footwear and Leather Technology

Conference / event

8th Asian Symposium on Advanced Materials ASAM-8, July 2023 (Novosibirsk, Russian Federation)

Poster summary

Highly stretchable polymer have getting much attention because of their unique properties. In this study, a highly stretchable polymer was synthesized by crosslinking polyurethane with pre-synthesized polyrotaxane from polypropylene glycol (PPG) with low covered cyclodextrin (CD) which acts as both chain extender and crosslinker. Polyrotaxane was used to synthesized by threading beta cyclodextrin (β-CD) along the axis of PPG-diamine polymer backbone followed end capped with 2,4,6-trinitrobenzene sulfonic acid (TNBS). The synthesized polyurethane and polyrotaxane were characterized by 1HNMR and FTIR spectroscopies. Coverage of polyrotaxane was adjusted by mole ratio of PPG and β-CD. DSC and TGA were used to characterize thermal properties of polyurethane. Tensile test was also conducted to measure elongation and tensile strength.


Polymer, Advanced polymer, Supermolecular, Cyclodextrin, Polyurethane, Polyrotaxane

Research areas

Chemical Engineering, Chemistry, Material Sciences


  1. Hakariya, M.; Arisaka, Y.; Masuda, H.; Yoda, T.; Tamura, A.; Iwata, T.; Yui, N. Tissue Adhesion-Anisotropic Polyrotaxane Hydrogels Bilayered with Collagen. Gels 2021, 7, 168. https://doi.org/10.3390/gels7040168
  2. Noda, Y., Hayashi, Y. and Ito, K. (2014), From topological gels to slide-ring materials. J. Appl. Polym. Sci., 131, 40509, doi: 10.1002/app.40509


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Supplemental files

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Additional information

Competing interests
No competing interests were disclosed.
Data availability statement
The datasets generated during and / or analyzed during the current study are available from the corresponding author on reasonable request.
Creative Commons license
Copyright © 2023 Lee et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Lee, J., Kwak, S., Turabee, M., Choi, K., Chung, I. Synthesis and characterization of flexible and strong polyurethane using PPG-βCD-polyrotaxane as a chain extender [not peer reviewed]. Peeref 2023 (poster).
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