This feasibility study allowed us to establish three main results : (i
) With high quality XANES spectra, it becomes quite possible to resolv
e the characteristic sigma(S-S), pi*(S-S) and sigma*(S-C) resonances;
(ii) The ''undulator gap scan'' technique can yield excellent EXAFS s
pectra at the sulfur K-edge over more than 1300 eV; (iii) S K-edge EXA
FS spectra made it possible to discriminate between vulcanizates with
variable amounts of sulfur crosslinks and zinc sulfide.