caa a22 4500 46322244X CHVBK 20180405153216.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10853-006-0547-0 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0547-0 Epoxy-imide resins from N -(4-carboxyphenyl)trimellitimide: effect of imide and aromatic content on adhesive and thermal properties [Elektronische Daten] [Ginu Abraham, Shanmugam Packirisamy, Sugu Surya Bhagawan, Ganapathy Balasubramanian, Rajagopala Iyer Ramaswamy] The effect of imide and aromatic content on the adhesive and thermal properties of epoxy-imide resins obtained through the reaction of epoxy resins viz., Araldite GY 250 (DGEBA; difunctional), Araldite EPN 1138 (novolac; polyfunctional) and epoxidized hydroxyl-terminated polybutadiene (EHTPB) with an imide-diacid viz., N-(4-carboxyphenyl)trimellitimide (IDA-I) was studied for different carboxyl equivalent to epoxy equivalent ratios (C/E ratios). The glass transition temperature of epoxy-imides varies from 80 to 144°C, 120 to 184°C and 41 to 143°C for GY 250-IDA-I, EPN 1138-IDA-I and EHTPB-IDA-I respectively with the variation in C/E ratio from 0.5 to 2. For C/E ratio up to 1, the overall thermal stability of epoxy-imides follow the trend, EPN 1138-IDA-I>GY 250-IDA-I>EHTPB-IDA-I and above this ratio considerable improvement in overall thermal stability is observed only for EHTPB-IDA-I. The optimum C/E ratio for obtaining maximum room temperature and elevated temperature adhesive strength was found to be 1.25. For the optimum ratio, GY 250, EPN 1138 and EHTPB-based systems give adhesive strength of 29, 23 and 18MPa respectively at room temperature and retain 78.3, 56.2 and 44.4% of the room temperature adhesive strength at 150°C. The influence of C/E ratio or in otherwords, imide or aromatic content on the adhesive strength, thermal stability and glass transition temperature was more pronounced for aliphatic epoxy, i.e., EHTPB-based system. Springer Science+Business Media, LLC, 2007 Abraham Ginu Polymers and Special Chemicals Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut Packirisamy Shanmugam Polymers and Special Chemicals Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut Bhagawan Sugu Surya Propellant Engineering Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut Balasubramanian Ganapathy Propellant Engineering Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut Ramaswamy Rajagopala Iyer Polymers and Special Chemicals Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/19(2007-10-01), 8342-8349 0022-2461 42:19<8342 2007 42 10853 https://doi.org/10.1007/s10853-006-0547-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0547-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abraham Ginu Polymers and Special Chemicals Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut NATIONALLICENCE 700 1- Packirisamy Shanmugam Polymers and Special Chemicals Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut NATIONALLICENCE 700 1- Bhagawan Sugu Surya Propellant Engineering Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut NATIONALLICENCE 700 1- Balasubramanian Ganapathy Propellant Engineering Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut NATIONALLICENCE 700 1- Ramaswamy Rajagopala Iyer Polymers and Special Chemicals Division, Propellant and Special Chemicals Group, PCM Entity, Vikram Sarabhai Space Centre, 695022, Thiruvananthapuram, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/19(2007-10-01), 8342-8349 0022-2461 42:19<8342 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer