Polyester
van Oss-Chaudhury-Good Theory
“Like likes like,” “Like dissolves like.”
Surface tension
Hydrogen bonding
Van der Waals force-pi stacking
Polyester
Ester functional group
Three kinds of polyester
Polyethyleneterephtalate
Polytrimethyleneterephtalate
Polybutyleneterephtalate
Synthesis
Structure (crystalline vs amorphous)
pi-stacking
Properties
Crystallization
Double junction fiber
Aramid structure
Capillary effect
1>cos> sqrt(3)/2
sqrt(3)/2 >cos>1/2
1/2 >cos>0
0>cos>-1/2