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Problem 7 . 1 Using the experimental data of cloud point measurements for PS / PI pairs given in Table 7 . 5 , obtain

Problem 7.1
Using the experimental data of cloud point measurements for PS/PI pairs given in Table 7.5, obtain an expression for defined by Eq.(7.2) for each PS/PI pair. Use Eq.(7.4) for the temperature-dependent specific volume of PS,vPS, and Eq.(7.5) for the temperature-dependent specific volume of PI,v?PI. Convert (having the units of molcm3) to Flory-Huggins interaction parameter using the definition of molar reference volume, Vref=[(MSvPS)(MIv?PI)]12 with MS being the molecular weight of styrene monomer and MI being the molecular weight of isoprene monomer. Note that MS=104.15 and MI=68.11.
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