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Synthesis and photopolymerization of 2-(acryloyloxy) ethyl bis (2-(acryloyloxy) ethyl)carbamate |
Ming XIAO, Ke-min WANG, Gui-ping MA, Jun NIE( ) |
State Key Laboratory of Chemical Resource Engineering, Key Lab of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China |
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Abstract A low viscosity urethane diacrylate monomer of 2-(acryloyloxy) ethyl bis (2-(acryloyloxy) ethyl)carbamate (AEBAC) was prepared via a nonisocyanate route. The photopolymerization kinetics of this urethane acrylate was studied by real-time FTIR. The influences of light intensity, photoinitiator type, and concentration on the polymerization kinetics were discussed. The photopolymerization kinetic results indicated that the relationship between the polymerization rate (Rp) and the incident light intensity (I0) was Rp∝I00.5 and the maximum rate of polymerization (Rp,max) was proportional to [A]0.5 ([A] was the molar concentration of initiator). The dynamic mechanical analysis (DMA) results indicated that the glass transition temperature (Tg) of the curing product of AEBAC was about 80°C.
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Keywords
kinetics
photopolymerization
RTIR
urethane diacrylate
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Corresponding Author(s):
NIE Jun,Email:niejun@mail.buct.edu.cn
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Issue Date: 05 September 2009
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