Dynamics of defect annihilations in polymerization of aromatic liquid crystalline polyesters

Yan Wang, Tai-Shung Chung*, Si Xue Cheng, Jingmei Xu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We have studied the annihilation process of disclinations during in situ thin film polymerization of a series of aromatic liquid crystalline polyesters by using a polarizing light microscope (PLM). The decreases both in isotropic molten area during liquid crystal (LC) phase formation and in distance between LC disclination pairs during annihilation are found to follow a power law relation. However, abnormal annihilation phenomena, which have not been previously reported, are observed. A faster annihilation rate in the late stage of the annihilation process and an increase in the distance of a disclination pair can occur if the LC system is a reacting system or if the surroundings have other ongoing annihilations.

Original languageEnglish (US)
Pages (from-to)1596-1603
Number of pages8
JournalJournal of Physical Chemistry B
Volume108
Issue number5
StatePublished - Feb 5 2004

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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