Cure behavior, morphology, and mechanical properties of the melt blends of epoxy with polyphenylene oxide

Journal of Applied Polymer ScienceVolume 75, Issue 1 p. 26-34 Cure behavior, morphology, and mechanical properties of the melt blends of epoxy with polyphenylene oxide S. J. Wu, S. J. Wu Department of Chemical Engineering, National Central University, Chung-Li, Taiwan 320, Republic of ChinaSearch for more papers by this authorT. K. Lin, T. K. Lin Department of Chemical Engineering, National Central University, Chung-Li, Taiwan 320, Republic of ChinaSearch for more papers by this authorS. S. Shyu, Corresponding Author S. S. Shyu Department of Chemical Engineering, National Central University, Chung-Li, Taiwan 320, Republic of ChinaDepartment of Chemical Engineering, National Central University, Chung-Li, Taiwan 320, Republic of China===Search for more papers by this author S. J. Wu, S. J. Wu Department of Chemical Engineering, National Central University, Chung-Li, Taiwan 320, Republic of ChinaSearch for more papers by this authorT. K. Lin, T. K. Lin Department of Chemical Engineering, National Central University, Chung-Li, Taiwan 320, Republic of ChinaSearch for more papers by this authorS. S. Shyu, Corresponding Author S. S. Shyu Department of Chemical Engineering, National Central University, Chung-Li, Taiwan 320, Republic of ChinaDepartment of Chemical Engineering, National Central University, Chung-Li, Taiwan 320, Republic of China===Search for more papers by this author First published: 19 November 1999 https://doi.org/10.1002/(SICI)1097-4628(20000103)75:1<26::AID-APP4>3.0.CO;2-3Citations: 56Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Cure behavior, miscibility, and phase separation have been studied in blends of polyphenylene oxide (PPO) with diglycidyl ether of bisphenol A (DGEBA) resin and cyanate ester hardener. An autocatalytic mechanism was observed for the epoxy/PPO blends and the neat epoxy. It was also found that the epoxy/PPO blends react faster than the neat epoxy. During cure, the epoxy resin is polymerized, and the reaction-induced phase separation is accompanied by phase inversion upon the concentration of PPO greater than 50 phr. The dynamic mechanical measurements indicate that the two-phase character and partial mixing existed in all the mixtures. However, the two-phase particulate morphology was not uniform especially at a low PPO content. In order to improve the uniformity and miscibility, triallylisocyanurate (TAIC) was evaluated as an in situ compatibilizer for epoxy/PPO blends. TAIC is miscible in epoxy, and the PPO chains are bound to TAIC network. SEM observations show that adding TAIC improves the miscibility and solvent resistance of the epoxy/PPO blends. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 75: 26–34, 2000 Citing Literature Volume75, Issue13 January 2000Pages 26-34 RelatedInformation