Monitoring frontal photopolymerization by electroresistance

The frontal photopolymerization of acrylates was conducted in tube with TPO as bleachable photoinitiator and was identified to reach complete conversion in the formed polymer phase. The spatiotemporal temperature profiles of the frontal photopolymerization of acrylates were detected with a series of...

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Bibliographic Details
Published in:European polymer journal 2007-09, Vol.43 (9), p.3912-3922
Main Authors: Cui, Yanyan, Yang, Jianwen, Zeng, Zhaohua, Zeng, Zhi, Chen, Yonglie
Format: Article
Language:English
Subjects:
Acrylate
Applied sciences
Electrical resistance
Exact sciences and technology
Frontal photopolymerization
Physicochemistry of polymers
Polymerization
Polymers and radiations
Rayleigh–Taylor effect
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Summary:The frontal photopolymerization of acrylates was conducted in tube with TPO as bleachable photoinitiator and was identified to reach complete conversion in the formed polymer phase. The spatiotemporal temperature profiles of the frontal photopolymerization of acrylates were detected with a series of immobilized thermocouples along with the reactor. Monomer with high functionality resulted great summit temperature and was favorable for accelerating the traveling of polymerization front. It was found that the front traveling may be affected by the protruded thermocouples head. Based on the sudden increase of electrical resistance during rapid photopolymerization, an electrical measurement was setup to follow the front traveling of frontal photopolymerization.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2007.06.047