Citation: Gui-qiu Ma, Jing-jiang Zhai, Ben Liu, Ding-hai Huang, Jing Sheng. PLASMA MODIFICATION OF POLYPROPYLENE SURFACES AND GRAFTING COPOLYMERIZATION OF STYRENE ONTO POLYPROPYLENE[J]. Chinese Journal of Polymer Science, ;2012, 30(3): 423-435. doi: 10.1007/s10118-012-1130-6 shu

PLASMA MODIFICATION OF POLYPROPYLENE SURFACES AND GRAFTING COPOLYMERIZATION OF STYRENE ONTO POLYPROPYLENE

Received Date: 14 June 2011
Revised Date: 2 September 2011

Fund Project: This work was financially supported by the National Natural Science Foundation of China (No. 50673073) and the Doctoral Foundation of Ministry of Education of China (No. 20060056043).

The surface of polypropylene (iPP) is modified with glow discharge plasma of Ar, so that the modified surfaces of iPP films are obtained. The studies of scanning electron microscopy (SEM) show the surface etching pattern of iPP films. The chemical structures of iPP films are confirmed by X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) spectroscopy. The wetting properties of modified surfaces of iPP films are characterized by contact angle, and the free energy of surfaces is calculated. The free radical of modification surfaces of iPP is measured by chemical method. The surfaces of iPP are achieved with Ar plasma treatment followed by grafting copolymerization with styrene (St) in St. The grafting polymer of St onto iPP is characterized by FTIR. The grafting rate is dependent on plasma exposure time and discharge voltage. The studies show that homopolymerization of St is undergone at the same time during the grafting-copolymerization of St onto iPP.
- Plasma treatment of polymer surface
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