02279nas a2200217   4500008004100000022001400041245011600055210006900171260007300240300001200313490000800325520144300333653002401776653001301800653003101813653002401844100002901868700001901897700001801916856012701934       2014                        eng d  a0168-583X00aReaction kinetics and modeling of photoinitiated cationic polymerization of an alicyclic based diglycidyl ether0 aReaction kinetics and modeling of photoinitiated cationic polyme  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a263-2680 v3183 a<p>Photoinitiated cationic polymerization of cycloaliphatic diepoxides had received tremendous attention, while studies with lesser polymerizable diglycidyl ethers are comparatively less reported. The present work deals with the photoinitiated cationic polymerization of cyclohexane dimethanol diglycidyl ether followed by estimation of kinetic parameters. The effects of concentration of photoinitiator and temperature on curing performance were studied using photo differential scanning calorimeter or photo DSC with polychromatic radiation. It was observed that the rate of polymerization as well as ultimate conversion increased with increasing concentration of photoinitiator and temperature. The influences of gelation as well as diffusional restrictions have remarkable effect on cure performance. The kinetic parameters as per autocatalytic kinetic model were studied by Levenberg-Marquardt nonlinear regression method instead of conventional linear method for obtaining more accurate values of apparent rate constant. It was observed that the model fits with data from initial stages to almost towards the end of the reaction. The activation energy was found to be higher than the values reported for more reactive cycloaliphatic diepoxides. The value of pre-exponential factor increased with increase in activation energy showing influence of gelation at early stages of reaction. (C) 2013 Elsevier B.V. All rights reserved.</p>10aAutocatalytic model10akinetics10aLevenberg-Marquardt method10aPhotopolymerization1 aHarikrishna, Reghunathan1 aPonrathnam, S.1 aTambe, S., S.  uhttps://library.ncl.res.in/content/reaction-kinetics-and-modeling-photoinitiated-cationic-polymerization-alicyclic-based-0