
210 HIGH PERFORMANCE POLYMERS
Table 8.1 Monomers for PEN
Remarks
Nitrile Monomer
2,6-Dichlorobenzonitrile Commonly used [4]
Pentachlorobenzonitrile Branched polymers [5]
Pentafluorobenzonitrile Film types [6]
4-Phenoxy-2,3,5,6-tetrafluorobenzonitrile Film types [7]
2-Fluorobenzonitrile Chain stopper [8]
Hydroxy monomer
Resorcinol Common
Hydroquinone Common
Biphenol Common
2,7-Dihydroxynaphthalene Increases
T
g
[4]
Bisphenol A Common [1]
4,4
-(Hexafluoroisopropylidene)diphenol Membranes [9]
9,9-Bis-(4-hydroxyphenyl)-fluorene [7]
Phenolphthalein [7]
4,4
-Dihydroxydiphenyl sulfone
Hydroxyaryl substituted spirodilactams,
e.g., 1,6-Di(3-hydroxyphenyl)-1,6-diazaspiro[4.4]nonane-2,7-dione ...