Synthesis and properties of a novel highly thermal stable N-propargyl monomer containing benzoxazole ring

Yang, Guang; Wang, Chengbo; Liu, Chao; Yang, Zhiyong; Hou, Xianghui

Abstract

© 2017, © The Author(s) 2017. A novel highly thermal stable propargyl functional compound containing benzoxazole ring, N, N, N′, N′-tetra propargyl-5-amino-2-(p-aminophenyl) benzoxazole (TPAPB), was proposed and synthesized using a phase-transfer catalytic method. The cure behavior of TPAPB was investigated by non-isothermal differential scanning calorimetry analysis. The solubility and rheological properties of TPAPB, as well as its broad temperature window from 130°C to 200°C with low viscosity, offered excellent processability for TPAPB to be used as a potential monomer of thermosetting polymer resin. It was found that the glass transition temperature of cured TPAPB was 359°C, and the temperature of 5% weight loss was 418°C in argon with the char residue up to 70% at 700°C. The polymerized resin exhibited high heat resistance and thermal stability, together with its processability, making it good candidate as highly heat-resistant polymer matrix for advanced composite applications.

Citation

Yang, G., Wang, C., Liu, C., Yang, Z., & Hou, X. (2018). Synthesis and properties of a novel highly thermal stable N-propargyl monomer containing benzoxazole ring. High Performance Polymers, 30(2), 239-246. https://doi.org/10.1177/0954008317690432

• Journal Article Type: Article
• Acceptance Date: Dec 30, 2016
• Online Publication Date: Feb 6, 2017
• Publication Date: Mar 1, 2018
• Deposit Date: Jun 7, 2017
• Publicly Available Date: Jun 7, 2017
• Journal: High Performance Polymers
• Print ISSN: 0954-0083
• Electronic ISSN: 1361-6412
• Publisher: SAGE Publications
• Peer Reviewed: Peer Reviewed
• Volume: 30
• Issue: 2
• Pages: 239-246
• DOI: https://doi.org/10.1177/0954008317690432
• Keywords: Propargyl, benzoxazole, thermal stability, phase-transfer catalysis, purification
• Public URL: https://nottingham-repository.worktribe.com/output/776899
• Publisher URL: http://journals.sagepub.com/doi/10.1177/0954008317690432
• Contract Date: Jun 7, 2017