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Handbook of Solvents - George Wypych - ChemTech - Ventech!

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262 Valery Yu. Senichev, Vasiliy V. Tereshatov<br />

2<br />

⎛ ⎞<br />

⎜∑<br />

F ⎟ F<br />

i ∑ i<br />

⎝ i ⎠<br />

i<br />

E = , δ =<br />

[5.3.2]<br />

V<br />

V<br />

where:<br />

V molar volume <strong>of</strong> solvent or a repeating unit <strong>of</strong> polymer<br />

The molar attraction constants were calculated by Small based on literature data for a<br />

vapor pressure and latent heat <strong>of</strong> vaporization <strong>of</strong> liquids. The comprehensive values <strong>of</strong> these<br />

constants are given in Table 5.3.1.<br />

Table 5. 3.1. Molar attraction constants<br />

Group<br />

Small 2<br />

Van Krevelen 5<br />

F, (cal cm 3 ) 1/2 mol -1<br />

Hoy 7<br />

>C< -93 0 32.0<br />

>CH- 28 68.5 86.0<br />

-CH2- 133 137 131.5<br />

-CH3 214 205.5 148.3<br />

-CH(CH3)- 242 274 (234.3)<br />

-C(CH3) 2- 335 411 (328.6)<br />

>C=CH- 130 148.5 206.0<br />

-CH=CH- 222 217 243.1<br />

-C(CH3)=CH- (344) 354 (354.3)<br />

Cyclopentyl - 676.5 633.0<br />

Cyclohexyl - 813.5 720.1<br />

Phenyl 735 741.5 683.5<br />

1,4-Phenylene 658 673 704.9<br />

-O- 70 125 115.0<br />

-OH - 368.5 225.8<br />

-CO- 275 335 263.0<br />

-COO- 310 250 326.6<br />

-COOH - 318.5 (488.8)<br />

-O-CO-O- - 375 (441.6)<br />

-CO-O-CO- - 375 567.3<br />

-CO-NH- - 600 (443.0)<br />

-O-CO-NH- - 725 (506.6)<br />

-S- 225 225 209.4

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