Poly dynamic structure factor

Figure 13. Left half-peak time r,, 2 of coherent dynamic structure factor plotted vs. Q for poly(dimethylsiloxane) in C D. Continuous line, calculated results at T = 30 C dashed line, at T = 70 C. F.xperimental points are from ref. 115. Right characteristic time (j, vs. Q for molten sample at 7 =100°C. Experimental points are from ref. 115. [Model assumptions and parameters periodic chain, Tq = 0, R = 0.30 A, tB = 0.018 for solutions, R, = OA, xB = 0 for melt.] (Reprinted with permission from ref. 15, Copyright 1985, American Chemical Society.)...

Figure 8.17 Dynamic structure factor Ss (q, co) (predominantly incoherent) obtained, at 25 °C, with a sample of poly(methyl methacrylate) in which all the hydrogens, except the ones in the ester methyl group, were replaced by deuteriums. (From Gabrys et al.11)...

Figure 8.19 Incoherent dynamic structure factor measured with poly(vinyl chloride) for q = 1.5A 1 at temperatures above and below the glass transition temperature.358 K. The broken curve is the instrumental resolution function measured. (From Colmenero euifr13)...

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