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Cyclic polystyrene

Fig. 10. Concentrations of macrocyclics Mx (in mol dm-3) plotted as log [MXJ against log x for a ring-chain equilibration of poly(dimethylsiloxane)-b-polystyrene-b-poly(dimethylsiloxane) in toluene at 383 K. Experimental points are denoted . The continuous line was calculated for polystyrene cyclics opening at intervals of fifty skeletal bonds, using the Jacobson and Stockmayer theory and assuming that the chains obey Gaussian statistics... Fig. 10. Concentrations of macrocyclics Mx (in mol dm-3) plotted as log [MXJ against log x for a ring-chain equilibration of poly(dimethylsiloxane)-b-polystyrene-b-poly(dimethylsiloxane) in toluene at 383 K. Experimental points are denoted . The continuous line was calculated for polystyrene cyclics opening at intervals of fifty skeletal bonds, using the Jacobson and Stockmayer theory and assuming that the chains obey Gaussian statistics...
INTRODUCTTON Polymer molecules may have a variety of architectural structures such as linear, ring, star, branched, and ladder chains as well as three-dimensional network structures. The first synthetic cychc jxjlymers to be prepared and characterized were the poly(dimethylsiloxanes) (PDMS), which were reported in 1977. Since that time a number of other cychc pwlymers have been synthesized including cyclic polystyrene, cyclic poly(phenyhnethylsiloxane), cyclic poly(2-vinylpyridine), cyclic polybutadiene, and cychc poly(vinyhnethylsiloxane). ... [Pg.436]

Second virial coefficient of polystyrene (cyclic) Data extract from Landolt-Bornstein VIII/6D2 Polymers, Polymer Solutions, Physical Properties and their Relations I (Thermodynamic Properties PVT-data and miscellaneous properties of polymer solutions) ... [Pg.1159]

Table 1. Second virial coefficient of polystyrene (cyclic). ... Table 1. Second virial coefficient of polystyrene (cyclic). ...
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See also in sourсe #XX -- [ Pg.16 , Pg.41 ]



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