Cellulose tricaproate

The data for cellulose tricaproate [Krigbaum and Sperling (757)] were too scattered for the use of Eq. (58), so that we have taken a from the estimates based on light scattering made by the authors. 

Figure 3.5 illustrates the determination of the Flory 0-temperature for cellulose tricaproate dissolved in dimethylformamide (25). Table 3.6 presents a selected list of polymers and their theta solvents (26). 

Figure 3.5 The osmotic pressure data for cellulose tricaproate in dimethyiformamide at three temperatures. The Flory e-temperature was determined to ije 41 1°C (25).

What is the molecular weight of the cellulose tricaproate sample in Figure 3.5 Note that R = 0.08205 atm-l/mol-K for this problem. 

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