Dynamic mechanical behavior of supramolecular C-60-containing polymeric materials

The dynamic mechanical behavior of materials based on 1,2-dihydro-1,2-metha nofullerene[60]-61-carboxylic acid (F-CA), poly(styrene-co-4-vinylpyridine) and poly(styrene-co-butadiene) was studied. The interaction between the ca rboxylic acid group of F-CA and the pyridine group as evidenced by X-ray ph otoelectron spectroscopy (XPS) ensures a good adhesion between F-CA and the polymer matrix. The storage modulus of the polymer matrix is significantly increased by the incorporation of F-CA, and F-CA is a more effective reinf orcing filler than unfunctionalized C-60. (C) 2001 Elsevier Science B.V. Ad l rights reserved.