Synthesis and Characterization of Polyacrylonitrile Microspheres by Soapless Emulsion Polymerization

Abstract:

Polyacrylonitrile(PAN) microspheres were synthesized by soapless emulsion polymerization of acrylonitrile(AN) in water. The effects of monomer and initiator concentration on the conversion of AN and the diameter of microspheres were investigated. The results showed that when the concentration of monomer increases, the conversion of AN decreases while the diameter of PAN microspheres increases. When the concentration of initiator increases, the conversion of AN and the diameter of PAN microspheres both increase. For this method of PAN microspheres synthesis, the highest conversion of AN is about 60% and the diameter can be controlled in need ranging from approximately 140 to 500nm.

• Periodical: Advanced Materials Research (Volumes 311-313)
• Pages: 571-575
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.311-313.571
• Online since: August 2011
• Authors: Guang Zhi Yang, Chun Feng Zhu, Lei Zhang, Han Xun Qiu, Xian Ying Wang, Jun He Yang
• Keywords: Acrylonitrile, Emulsion Polymerization, Micro-Sphere, Polyacrylonitrile

References

[1] M.Y. Yang, L. Zhang, P.J. Mao. Journal of China Textile University, Vol. 24(1998), p.97.

[2] J. Wang, S. Zhu, X.S. Qiu. Speciality Petrochemicals, Vol. 24(2007), p.56.

[3] L. Boguslavsky, S. Baruch, S. Margel. J. Colloid Interf Sci, Vol. 289(2005), p.71.

[4] A. J. Paine. Macromolecules. Vol. 23(1990), p.3109.

[5] C. M. Tseng, Y. Y. Lu, M. S. El-Aasser, J. W. Vanderhoff. Journal of Polymer Science, Part A: Polymer Chemistry. Vol. 24(1986), p.2995.

DOI: 10.1002/pola.1986.080241126

[6] S. Shen, E. D. Sudol, M. S. El-Aasser. Journal of Polymer Science, Part A: Polymer Chemistry. Vol. 32(1994), p.1087.

[7] P. Christian, S. M. Howdle, D. J. Irvine. Macromolecules., Vol. 33(2000), p.237.

[8] J. M. Saenz, J. M. Asua. Macromolecules. Vol. 31(1998), p.5215.