• Thuy Thu Truong Ho Chi Minh city University of Technology
  • Le-Thu T. Nguyen Ho Chi Minh city University of Technology




microcapsules, polycaprolactone shell, thiol-ene addition


Polymer materials incorporating microencapsulated self-healing agents have a wide range of application from paint coating, anti-corrosion coatings to automotive and construction materials. In this research, microcapsules containing reactive mercaptan compound for use in self healing polymers were successfully fabricated via the oil-in-water emulsion method. We employed for the first time the UV-initiated thiol-ene reaction between an alkene-functionalized polycaprolactone and a tetrathiol compound to form the microcapsule shell. To synthesize microcapsules, the tetrathiol was used in large excess, thus maintaining inside the microcapsules as the core material. The obtained microcapsules were analyzed by Fourier Transform infrared microscopy, optical microscopy, scanning electron microscopy (SEM) and laser diffraction particle size analysis. The core was extracted by Soxhlet extraction and analyzed by 1H NMR and FTIR spectroscopy.


Download data is not yet available.

Author Biography

Le-Thu T. Nguyen, Ho Chi Minh city University of Technology

Faculty of Materials Technology, Department of Polymer Materials


Urdl K., Kandelbauer A., Kern W., Müller U., Thebault M. and Zikulnig-Rusch E. - Self-healing of densely crosslinked thermoset polymers—a critical review, Prog. Org. Coat. 104 (2017), pp. 232-249.

Hillewaere X. K. D. and Du Prez F. E. - Fifteen chemistries for autonomous external self-healing polymers and composites, Prog. Polym. Sci. 49-50 (2015), pp. 121-153.

R. G. R. C., A. S. C. W., P. K. B., L. P. E., Jonathan W., R. S. N. and R. W. S. - Restoration of Impact Damage in Polymers via a Hybrid Microcapsule–Microvascular Self‐Healing System, Adv. Funct. Mater. 28 (2018), pp. 1704197.

Billiet S., Hillewaere X. K. D., Teixeira R. F. A. and Du Prez F. E. - Chemistry of Crosslinking Processes for Self-Healing Polymers, Macromol. Rapid Commun. 34 (2013), pp. 290-309.

Hillewaere X. K. D., Teixeira R. F. A., Nguyen L.-T. T., Ramos J. A., Rahier H. and Du Prez F. E. - Autonomous Self-Healing of Epoxy Thermosets with Thiol-Isocyanate Chemistry, Adv. Funct. Mater. 24 (2014), pp. 5575-5583.

Yuan Y. C., Rong M. Z., Zhang M. Q., Chen J., Yang G. C. and Li X. M. - Self-Healing Polymeric Materials Using Epoxy/Mercaptan as the Healant, Macromolecules 41 (2008), pp. 5197.

Billiet S., Van Camp W., Hillewaere X. K. D., Rahier H. and Du Prez F. E. - Development of optimized autonomous self-healing systems for epoxy materials based on maleimide chemistry, Polymer 53 (2012), pp. 2320-2326.

Yan Chao Yuan, Min Zhi Rong and Zhang M. Q. -, Polymer 49 (2008), pp. 2531.

van den Dungen E. T. A. and Klumperman B. - Synthesis of liquid-filled nanocapsules via the miniemulsion technique, J. Polym. Sci., Part A: Polym. Chem. 48 (2010), pp. 5215-5230.

Machado T. O., Sayer C. and Araujo P. H. H. - Thiol-ene polymerisation: A promising technique to obtain novel biomaterials, Eur. Polym. J. 86 (2017), pp. 200-215.

Thu T. T., Hong T. S., Tran N. H., Vinh-Dat V. and T. N. L.-T. - Synthesis of allyl end-block functionalized poly(ε-caprolactone)s and their facile post-functionalization via thiol–ene reaction, J. Polym. Sci., Part A: Polym. Chem. 55 (2017), pp. 928-939.

Finken R. and Seifert U. - Wrinkling of microcapsules in shear flow, J. Phys.: Condens. Matter 18 (2006), pp. L185.






3rd Intern Workshop CPM2018