Open Access

ARTICLE

Preparation of Porous Cross-linked Microsphere through Electrospraying combined with Photopolymerization

SHUANGQI ZHAO¹ , LIFEI HE², RUIXUE YIN^3,4,*, KEMIN WANG^2,4,*

1 School of Chemistry and Materials Science, Hubei Engineering University, Xiaogan, Hubei, 432000, China
2 School of Materials Science and Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China
3 Complex and Intelligent Research Center, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China.
4 Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, S7N 5A9, Canada.

* Corresponding Authors: e-mail: ,

Journal of Polymer Materials 2018, 35(2), 221-229.

Abstract

Porous cross-linked microspheres were manufactured from low-viscosity monomers through electrospraying combined with photopolymerization. Firstly, the liquid drops of monomer solution formed by electrospraying were crystallized by liquid nitrogen, and then the cross-linked polymer is formed by photopolymerization. Finally, the porous microspheres were obtained after the solvent was removed by freeze drying. The morphology, chemical structure, pore diameter and thermal stability of porous cross-linked microspheres were investigated by scanning electron microscope (SEM), fourier transform infrared spectroscopy (FTIR spectroscopy), mercury intrusion porosimetry and thermogravimetry analysis (TG). This approach provides a new stratage to prepare cross-linked porous microspheres from small molecules without using any template or other additives.

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Keywords

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