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Citation: FU Hui-Tan, SUN Hong, HUO Dong-Xia, WANG Hong-Ying. Preparation of Thermal-sensitive Membrane by UV Photografting Based on Photo-sensitive Membrane[J]. Chinese Journal of Applied Chemistry, ;2008, 25(3): 322-325. shu

Preparation of Thermal-sensitive Membrane by UV Photografting Based on Photo-sensitive Membrane

1.
a School of Materials Science and Engeering, Zhengzhou University, Zhengzhou 450052;
2.
b Department of Chemistry, Zhengzhou University, Zhengzhou 450052

Corresponding author: WANG Hong-Ying,
Received Date: 15 March 2007
Available Online: 1 June 2007
Fund Project: 河南杰出青年科学基金(0112001800) (0112001800)

A new method for the preparation of thermal-sensitive membranes was proposed in this paper.Poly(N-isopropylacrylamide)(PNIPAAm) was successfully grafted onto a PAN membrane having photo-sensitive groups by UV photografting method.The FTIR spectrum and SEM photographs confirmed the existence of PNIPAAm chains on the surface and in the pores of the grafted membrane.When monomer concentration reached 0.4 mol/L,a maxium grafting yield of 4.89% could be achieved.An increase on reaction time and temperature favored the increase of grafting yield,but the grafting yield was slowed down at higher reaction temperature(35℃) and longer reaction time (15 min).In addition,the wettability of grafted membrane was significantly improved with the increasing of grafting yield.
- UV photografting,
- photo-sensitive,
- N-isopropylacrylamide,
- thermal-sensitivity
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