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|Title:||Dynamics of defect annihilations in polymerization of aromatic liquid crystalline polyesters|
|Authors:||Wang, Y. |
|Source:||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|
|Appears in Collections:||Staff Publications|
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