Polybutadiene deuterated

Ai/gmol = 1800,MJg.mor = 1930, synthesized in the laboratory 1 -dichlorobenzene C6H4CI2 polybutadiene (deuterated)... 

Fig. 7 Phase diagram for a polybutadiene/deuterated polybutadiene blend with Npb = 3500 and JV pb = 3200, showing the regions in which concentration fluctuations will grow in the vorticity direction as a function of absolute shear rate. The solid line is the quiescent spinodal curve, and the unlabelled curves correspond to (-) y = 0.5 s (--)...

Fig. 3.28 Melt self-diffusion data for hydrogenated (or deuterated) polybutadiene samples adjusted to 175 °C as a function of molecular weight [82] [83], S [84],H[85],S [86], [87]. (Reprinted with permission from [82]. Copyright 1999 The American Physical Society)...

Fig. 4.2 Static structure factor measured on fully deuterated 1,4-polybutadiene [123] at tbe temperatures indicated...

Characteristic pseudo-solid spin-echoes recorded from polybutadiene are shown in Fig.2 the polymer concentration in deuterated toluene was 0.88 (w/w). The fraction of monomeric units in the ds conformation was 0.96 (M =110,000 g/mol.). 

Temperature dependence of y for mixtures of hydrogenated polybutadiene (88% vinyl) and deuterated polybutadiene (78% vinyl) and the calculated phase diagram from Flory-Huggins theory with Aa = Ab = 2000 and Vo = 100 A. The binodal is the solid curve and the spinodal is dashed. Adapted from N. P. Balsara, Physical Properties of Polymers Handbook (J. E. Mark, editor), AIP Press, 1996, Chapter 19. 

For instance, neutron scattering experiments performed by Bates, Wignall, and Koehler22 with an isotopic mixture of polybutadiene at temperature T = 296 K showed the existence of this effect (Oak Ridge, USA, 1985). The mixture was made of equal volumes of deuterated and non-deuterated polybutadiene (Nw = 4600 and Nw/N = 1.10 for the deuterated sample, iVw = 4200 and Nw/N = 1.12 for the undeuterated one). From the intensity I(q) and the value KA of the instrument constant, they deduced the scattering cross-section per unit volume [see (7.2.54)]... 

Fig. 16.15. The differential cross-section per unit volume (

Fig. 9. A comparison of the late stage scaling function of near critical polybutadiene/polyisoprene (PB/PI) mixtures at T = 55 °C with that of deuterated poly-butadiene/polybutadiene mixture [36], DPB/PB and of an iso-butyric acid/water mixture [181] I/W. Note the asymptotic exponents F(x < 1) ocx and F(x > 1) ocx-4. From Takenaka and Hash-imoto [180]...

Figure 6.5 Neutron scattering intensity data obtained with a diblock copolymer of deuterated 1,4-polybutadiene and hydrogenous 1,2-polybutadiene. (From Bates and Hartney.10)...

RAM Ramachandrarao, V.S., Vogt, B.D., Gupta, R.R., and Watkins, J.J., Effect of carbon dioxide sorption on the phase behavior of weakly interacting polymer mixtures solvent-induced segregation in deuterated polybutadiene/polyisoprene blends, J. Polym. Sci. PartB Polym. Phys., , , U, 2003,... 

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