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. 2019 May 13;11(5):874. doi: 10.3390/polym11050874

Figure 5.

Figure 5

Chart displaying Chi (χ) dependence on temperature (50–500 K): (A) DEE; (B). 2-MeTHF; (C) MTBE; and, (D) CPME. Chi (χ) values at the working temperature in this study (280 K): DEE; 55.5 > 2-MeTHF; 49.3 > MTBE; 42.8 > CPME; 33.2.