Synthesis and Photoconductivity Study of C60-Containing Styrene/Acrylamide Copolymers

The C60-containing copolymers were prepared by reaction of styrene (St)/acrylamide (Am) copolymers with C60 in toluene. By means of UV-Vis spectroscopy, the C60 content in the copolymers was determined to be up to 1.45 wt.-%. The results show that with increasing the amide molar fraction in the copolymers, the C60 content increases and the molar ratio C60/amide group decreases. It was also revealed that the reactivity of the amide group with respect to C60 could be enhanced by increasing the reaction temperature. C60-containing St/Am copolymers were characterized by DSC, GPC, XRD and UV-Vis spectroscopy. Experimental results indicate that these C60-containing polymers reveal good photoconductivity, with the t1/2 value of the better one (B8) being about 1.88 s, and photoconductivity could be enhanced on increasing the C60 content in the copolymers.