Photo Polymerization of Thiol-Hyperbranched Polysilazanes
2013 ◽
Vol 683
◽
pp. 266-270
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Keyword(s):
The kinetics of UV curable thiol-hyperbranched polysilazanes (HBP) was studied by differential photo-scanning calorimeter (DPC) technology. The effects of photo initiator concentration [I], light intensity I0and temperature on the UV curing rate and the final unsaturated double bond conversion of thiol-HBP were investigated. The results indicate that the dependence of polymerization rate Rp on [I] and I0, respectively, was found to fit with theoretical predictions very well at [I] no more than 0.50wt% and I0lower than 19.40mW/cm2. The kinetic parameters were calculated by autocatalytic model, and correspondingly, the total apparent reaction exponent and apparent activation energy are 8.76 and 13.97kJ/mol, respectively.
2012 ◽
Vol 554-556
◽
pp. 236-239
Keyword(s):
2014 ◽
Vol 989-994
◽
pp. 348-351
◽
2011 ◽
Vol 233-235
◽
pp. 2337-2340
2013 ◽
Vol 791-793
◽
pp. 175-178
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2010 ◽
Vol 174
◽
pp. 397-400
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Keyword(s):
1980 ◽
Vol 45
(12)
◽
pp. 3338-3346
1982 ◽
Vol 47
(7)
◽
pp. 1780-1786
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Keyword(s):