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Title: Dynamics of defect annihilations in polymerization of aromatic liquid crystalline polyesters
Authors: Wang, Y. 
Chung, T.-S. 
Cheng, S.-X.
Xu, J.
Issue Date: 5-Feb-2004
Citation: Wang, Y.,Chung, T.-S.,Cheng, S.-X.,Xu, J. (2004-02-05). Dynamics of defect annihilations in polymerization of aromatic liquid crystalline polyesters. Journal of Physical Chemistry B 108 (5) : 1596-1603. ScholarBank@NUS Repository.
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.
Source Title: Journal of Physical Chemistry B
ISSN: 15206106
Appears in Collections:Staff Publications

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