摘要:

Fusible polyphenylenes with molecular weights approaching 3000 have been prepared by the cationic oxidative polymerization ofm-terphenyl,o-terphenyl,1,3,5-triphenylbenzene, or mixtures of the terphenyls with biphenyl and with benzene. Polymerizations were carried out in the molten state with either aluminum chloride catalyst and cupric chloride as oxidizer or the much less efficient ferric chloride, which served both functions. Fusible polymer fractions were isolated by a series of continuous extractions with hot aromatic solvents. Polymers in the 2000-to-3000 molecular-weight range generally melted between 300 and 400°C. The polymer chains are presumed to have phenyl branches besides some fused ring structures, evidence of the latter being their carbon-to-hydrogen ratios of up to 1.67.

ISSN:0022-233X    

DOI:10.1080/10601326708053924

出版商:Taylor & Francis Group    

年代:1967

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue

ISSN:0022-233X    

DOI:10.1080/10601326708053913

出版商:Taylor & Francis Group    

年代:1967

数据来源: Taylor