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Citation: CHEN Jie, YI Chang-Feng, XU Zu-Shun. Preparation of Polybutylcyanoacrylate Microspheres via Emulsifier-Free Emulsion Polymerization and Microwave Irradiation[J]. Chinese Journal of Applied Chemistry, ;2007, 24(8): 929-932. shu

Preparation of Polybutylcyanoacrylate Microspheres via Emulsifier-Free Emulsion Polymerization and Microwave Irradiation

CHEN Jie ^b ,
YI Chang-Feng ^a,b ,
XU Zu-Shun ^b,,

1.
a Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062;
2.
b College of Materials Science and Engineering, Hubei University, Wuhan 430062

Corresponding author: XU Zu-Shun,
Received Date: 6 September 2006
Available Online: 20 November 2006
Fund Project: 湖北省科技厅创新团队基金资助项目(2006ABC012) (2006ABC012)

The emulsifier-free emulsion polymerization of butylcyanoacrylate (BCA) was successfully carried out under the non-thermal effect of microwave irradiation.The morphologies and the sizes of the polybutylcyanoacrylate (PBCA) microspheres were characterized by TEM and PCS.The effects of citric acid concentration,monomer BCA concentration,and microwave power on the sizes of the PBCA microspheres were investigated.The results show that microwave irradiation could shorten the polymerization time,and the PBCA microspheres prepared by emulsifier-free emulsion polymerization under the non-thermal effect of microwave irradiation were smaller,more uniform than those obtained with conventional method.Under the same microwave power and monomer BCA concentration,the size of the PBCA microsphere increased with the increasing of the citric acid concentration.At the same citric acid concentration,the size of the PBCA microsphere decreased firstly and then increased with increasing the microwave power and the monomer BCA concentration.It was found that the microspheres with diameter almost 200 nm were obtained at a citric acid concentration of 0.005%,a monomer BCA concentration of 1.0%,and a microwave power of 600 W.
- polybutylcyanoacrylate,
- emulsifier-free emulsion polymerization,
- non-thermal effect of microwave irradiation,
- microsphere
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