Polyvinyl methylether

Fig. 59. Gelation dose as a function of polymer concentration for polyvinyl-methylether in various solvents [457 ].

Figure 26. Data of Kim, et aJ. [108], and fits to stretched exponentials, for (a) D of 900 kDa polystyrene in toluene, and (b) Dp of (top to bottom) methyl red, and 10, 35, 100, 390, 900, and 1800 kDa Dg polystyrenes through high-molecular-weight M/P > 3) polystyrene toluene matrix solutions. The left axis shows zero-matrix-concentration data, (c) Dp of polystyrenes [from top to bottom 379 kDa / = 3 star, 422 kDa linear chain, 1050 kDa linear chain, and 1190 kDa / = 3 star] through 1300 kDa polyvinyl-methylether orthofluorotoluene [110], and fits to linear (solid lines) and 3-armed star (dashed lines) data to eq. 16. (d) Dp of [111] 12-arm star polystyrenes (from top to bottom, of 55, 467, 1110, and 1690 kDa)in 140 kDa polyvinylmethylether ortho-fluorotoluene and fits to eq. 16.

Wheeler, et al. [124] studied tracer diffusion of linear polystyrenes having molecular weights 65, 179, 422, and 1050 kDa (with M /M < 1.1) through a 1.3 MDa polyvinyl-methylether matrix polymer, 1.6, in orthofluorotoluene at concentrations 1-100... 

Figures.17 Ds of(B)65,(D) 179,( )422,and(0) 1050kDalinearpolystjrene in ortho-fluorotoluene solutions of (a) 140, (b) 630, and (c) 1300 kDa polyvinyl-methylether. Measurements from Wheeler, et al.(33,35). Solid lines represent separate stretched exponentials for each P M pair dashed lines represent Eq. 8.2 as simultaneously fitted to aU four probes in all three matrices, yielding twelve dashed lines aU with the same fitting parameters.

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