caa a22 4500 445385235 CHVBK 20180317143030.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10924-011-0348-7 doi (NATIONALLICENCE)springer-10.1007/s10924-011-0348-7 The Effect of CTBN Concentrations on the Kinetic Parameters of Decomposition of Blends of Epoxy Resins Modified with Carboxyl-Terminated Liquid Copolymer [Elektronische Daten] [Minakshi Sultania, Deepak Srivastava] Diglycidyl ether of bisphenol—A (DGEBA)—based epoxy resin was blended in the ratio of 3:1 (weight basis) with cycloaliphatic epoxy (CAE) resin. The prepared blend sample was further blended with different weight percentages of carboxyl-terminated butadiene acrylonitrile copolymer (CTBN) ranging between 0 and 25wt% with an interval of 5wt% and cured with stiochiometric amounts of 4, 4'- diamino diphenyl sulphone (DDS) cure agent. Structural changes during blending were studied by Fourier-transform infra-red (FTIR) spectroscopic analysis. The kinetic parameters, viz., order of decomposition reaction (n), activation energy (E), pre-exponential factor (Z) and rate decomposition constant (k), for the decomposition of the samples were calculated by applying Coats-Redfern equation over thermogravimetric (TG) data. The degradation of each sample followed second-order degradation kinetics, which was calculated by Coats-Redfern equation using best-fit analysis. This was further confirmed by linear regression analysis. The validity of data was checked by t-test statistical analysis. Further, the blend sample had higher initial degradation temperature and activation energy than its respective pure epoxy resin indicating that the CTBN acted as thermal stabilizer for epoxy resin which improved the thermal stability. Springer Science+Business Media, LLC, 2011 Di-glycidyl ether of bis-phenol-A (DGEBA) epoxy resin nationallicence Cycloaliphatic epoxy (CAE) resin nationallicence Carboxyl-terminated butadiene acrylonotrile (CTBN) copolymer nationallicence Thermogravimetric analysis (TGA) nationallicence Activation energy nationallicence Sultania Minakshi Department of Plastic Technology, H. B. Technological Institute, 208 002, Kanpur, UP, India aut Srivastava Deepak Department of Plastic Technology, H. B. Technological Institute, 208 002, Kanpur, UP, India aut Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/4(2011-12-01), 950-956 1566-2543 19:4<950 2011 19 10924 https://doi.org/10.1007/s10924-011-0348-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-011-0348-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sultania Minakshi Department of Plastic Technology, H. B. Technological Institute, 208 002, Kanpur, UP, India aut NATIONALLICENCE 700 1- Srivastava Deepak Department of Plastic Technology, H. B. Technological Institute, 208 002, Kanpur, UP, India aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/4(2011-12-01), 950-956 1566-2543 19:4<950 2011 19 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer