Synthesis and characterization of poly(p-phenylene terephthalate) crystals obtained by crystallization during polymerization

Kunio Kimura, Seiji Endo, Yasuo Kato, Yuhiko Yamashita

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Poly(p-phenylene terephthalate) (PPTE) crystals were prepared by high-temperature solution polymerization via three different types of reaction as follows: bimolecular condensation of (1) 1,4-diacetoxybenzene and terephthalic acid and (2) hydroquinone and diphenyl terephthalate and self-condensation of (3) mono(4′-acetoxyphenyl) terephthalate. In spite of the reaction types, needle-like crystals are not obtained as found with poly(oxy-1,4-benzenediylcarbonyl) (POB) whiskers, under polymerization conditions identical with those used to produce POB whiskers. PPTE and POB have similar molecular structure, that is, they comprise 1,4-phenylene groups and ester linkages, whereas the morphologies of the crystals obtained are quite different. From the structural study, PPTE crystals are single crystals, and polymer chains align perpendicular to the plane of the sheaf-like or plate-like crystal.

Original languageEnglish
Pages (from-to)83-93
Number of pages11
JournalHigh Performance Polymers
Volume6
Issue number1
Publication statusPublished - Mar 1994

Fingerprint

Crystallization
Polymerization
Crystals
Condensation
Needles
Molecular structure
Esters
terephthalic acid
poly-para-phenylene
Single crystals
Polymers
Acids
Temperature

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Synthesis and characterization of poly(p-phenylene terephthalate) crystals obtained by crystallization during polymerization. / Kimura, Kunio; Endo, Seiji; Kato, Yasuo; Yamashita, Yuhiko.

In: High Performance Polymers, Vol. 6, No. 1, 03.1994, p. 83-93.

Research output: Contribution to journalArticle

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