Preparation, structure and properties of PP--AA grafting copolymer

CAI Chuanlun, SHI Qiang, LI Lili, YIN Ligang, TANG Gongben, YIN Jinghua

PDF(325 KB)
PDF(325 KB)
Front. Chem. China ›› 2008, Vol. 3 ›› Issue (2) : 133-137. DOI: 10.1007/s11458-008-0025-0

Preparation, structure and properties of PP--AA grafting copolymer

  • CAI Chuanlun, SHI Qiang, LI Lili, YIN Ligang, TANG Gongben, YIN Jinghua
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Abstract

Polypropylene grafting with AA was prepared by reactive extrusion with pre-irradiated PP (rPP) as the homogeneous initiator. The effects of the pre-irradiated dose, the fraction of rPP and the concentration of acrylic acid on the grafting reaction were studied and the grafted PP was characterized by Fourier transition infrared spectroscopy (FTIR), differential scanning calorimeter (DSC) and polarized light microscopy (PLM). The results show that the degradation of PP was suppressed efficiently with this novel method for preparing PP-g-AA copolymers, and the grafted copolymers with good mechanical properties were obtained. It was found that the product with higher graft degree (Gd)(0.19%) and relatively excellent mechanical properties can be produced if the mass ratio of PP/rPP/AA is 90:10:0.8, where the selected pre-irradiation dose of rPP is 4 kGy. Moreover, an adhesive strength of 4.88 kN/m was reached in the PP-g-AA/aluminum laminate.

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CAI Chuanlun, SHI Qiang, LI Lili, YIN Ligang, TANG Gongben, YIN Jinghua. Preparation, structure and properties of PP--AA grafting copolymer. Front. Chem. China, 2008, 3(2): 133‒137 https://doi.org/10.1007/s11458-008-0025-0

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