Fig. 3. (a) Static structure factor, and (b) single chain static structure factor measured at different NP volume fractions for the systems containing chains of N = 200 beads each. Dash-dotted line in (b) indicates the Debye scattering function. The inset shows inverse form factor Ssc−1 as a function of q2 at small qRg ≪ 1 for N = 200 (data for N = 100 shown in Fig. S3, ESI†). From the initial slope the radius of gyration is determined to be the same with the value of Rg = 7.4 ± 0.1 for all NP volume fractions. (c) Kratky plots corresponding to (b). The dash-dotted line shows the Kratky-representation of the Debye function as x2Ssc(x)/N = 2[exp(−x2) + x2 − 1]/x2 with x = qRg. The vertical dashed line marks the corresponding q where qRNP = 1.
