Phenylated Aromatic Heterocyclic Polyphenylenes Containing Pendant Diphenylether and Diphenylsulfide Groups
The utilization of pendant groups to promote solubility in common organic solvents was first demonstrated1 with the aromatic polyphenylenes. Polymers2 prepared by the oxidation of benzene or dehydrogenation of polycyclohexadiene are crystalline materials and insoluble. Phenylated polyphenylenes obtained from the Diels-Alder polymerization of bistetracyclones with m- or p- diethynylbenzene are amorphous materials and are soluble in toluene. The pendant phenyl groups serve to decrease crystallinity and promote solubility.
KeywordsIsothermal Aging Phthalic Anhydride Anhydrous Magnesium Sulfate Naphthalic Anhydride Differential Scanning Colorimetry
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