Formation mechanism of Poly(4′-oxy-4-biphenylcarbonyl) crystals obtained by solution polymerization

Kunio Kimura, Seiji Endo, Yasuo Kato, Takashi Inaba, Yuhiko Yamashita

Research output: Contribution to journalArticle

36 Citations (Scopus)


Poly(4′-oxy-4-biphenylcarbonyl) (POBP) crystals are obtained from 4′-acetoxybiphenyl-4-carboxylic acid by high-temperature solution polycondensation. Based on the experiment, results indicate that the reorganization of crystals is accompanied by an increase of the DP by postpolymerization. From these experimental facts, it can be deduced that the formation mechanism of the bundlelike aggregates of fibrillar crystals is fundamentally similar to that in poly(oxy-1,4-benzenediylcarbonyl) whiskers and the apparent difference in crystal morphology is caused by the reorganization of crystals during slow lamellar crystallization of the oligomers formed in solution polymerization.

Original languageEnglish
Pages (from-to)255-259
Number of pages5
Issue number1
Publication statusPublished - Jan 2 1995
Externally publishedYes


ASJC Scopus subject areas

  • Materials Chemistry

Cite this