International Journal of Polymer Science

Research Article

Diffusion Coefficients of n-Alkanes and 1-Alcohols in Polyethylene Naphthalate (PEN)

Table 3

Experimentally determined partition coefficients .
SubstancePartition coefficient ()
140°C135°C130°C125°C120°C110°C100°C
Methane  9.0 10-1 1.42.12.9
Ethane  2.5 3.13.22.8
n-Propane  3.5 3.22.61.9
n-Butane  2.7 2.21.71.2
n-Pentane1.21.51.41.61.2  
n-Hexane9.6 10-11.29.4 10-11.09.2 10-1  
n-Heptane6.9 10-17.5 10-17.1 10-17.6 10-14.8 10-1  
n-Octane5.5 10-15.2 10-15.2 10-15.4 10-1   
n-Nonane4.1 10-13.6 10-13.1 10-1    
n-Decane2.4 10-11.9 10-11.9 10-1    
n-Undecane1.5 10-11.3 10-12.4 10-1    
n-Dodecane2.0 10-1      
1-Propanol6.9 10-26.8 10-26.7 10-26.9 10-26.8 10-2  
1-Butanol6.4 10-26.0 10-26.8 10-26.0 10-2   
1-Pentanol5.0 10-24.5 10-25.0 10-24.9 10-2   
1-Hexanol3.7 10-23.5 10-23.5 10-23.2 10-2   
1-Heptanol2.6 10-22.5 10-22.8 10-21.4 10-2   
1-Octanol1.7 10-22.5 10-23.2 10-2