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Synthesis and photopolymerization kinetics of benzophenone piperazine one‐component initiator
Author(s) -
Xiao Pu,
Wang Ying,
Dai Mingzhi,
Wu Gangqiang,
Shi Suqing,
Nie Jun
Publication year - 2008
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1024
Subject(s) - photoinitiator , photopolymer , benzophenone , triethylamine , polymerization , piperazine , kinetics , materials science , polymer chemistry , tertiary amine , amine gas treating , photochemistry , chemistry , monomer , organic chemistry , polymer , composite material , physics , quantum mechanics
A one‐component type II photoinitiator (PDBP), based on 4‐hydroxybenzophenone (HBP), acryloyl chloride, and piperazine, was synthesized and its structure was confirmed by 1 H‐NMR. The photopolymerization kinetics of the photoinitiator was studied by real‐time Infrared spectroscopy (FT‐IR). It indicated that PDBP was a more effective photoinitiator than that of BP/triethylamine (TEA). The rate of polymerization, final conversion increased and the induction period shortened with increase in PDBP concentration, light intensity, and amine concentration. The kinetics of photopolymerization for TPGDA incorporating PDBP in the presence of different tertiary amines as the initiating system indicated that the PDBP/TEA combination exhibited the highest polymerization rates among the PDBP/amine combinations. Copyright © 2007 John Wiley & Sons, Ltd.