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Title: Synthesis and characterization of a novel azido fluoroalkyl oligoether energetic plasticizer
Authors: Ong, Yew Jin
Pisharath, Sreekumar
See, Anders Yang Feng
Tay, Chor Yong
Hng, Huey Hoon 
Keywords: Engineering::Materials
Issue Date: 2022
Source: Ong, Y. J., Pisharath, S., See, A. Y. F., Tay, C. Y. & Hng, H. H. (2022). Synthesis and characterization of a novel azido fluoroalkyl oligoether energetic plasticizer. Journal of Materials Research, 37(7), 1296-1308.
Journal: Journal of Materials Research 
Abstract: Cast cured formulations have emerged as an important enabling platform for the manufacturing of large calibre energetic systems. In this study, we report a novel hybrid oligomer containing fluoroalkyl and azido moieties, 1,4-bis((2-azido-4,4,5,5,6,6,7,7,7-nonafluoroheptyl)oxy)butane (BANFHOB) as an energetic plasticizer for a cast curable fluoropolymer (FP) binder. The fluoroalkyl and azido groups impart oxidizing and energy release properties to the plasticizer. BANFHOB was synthesized by cationic ring-opening polymerization of 2,2,3,3,4,4,5,5,5-nonafluoropentyloxirane, followed by end-group modification of the terminal hydroxyl groups into azides. BANFHOB with a number average molecular weight of 698 g/mol exhibited low glass transition temperature (Tg = –78.2 °C) and viscosity (η25°C = 71 mPa s). Compared to a conventional plasticizer (dibutyl phthalate), BANFHOB showed good miscibility with FP and exhibited excellent plasticizing effects by significantly reducing the Tg and viscosity of FP. BANFHOB also exhibited promising plasticizing effects on a commercial fluoropolymer binder (Viton®), demonstrating its application potential for fluoropolymer-based formulations.
ISSN: 2044-5326
DOI: 10.1557/s43578-022-00525-1
Schools: School of Materials Science and Engineering 
School of Biological Sciences 
Research Centres: Emerging nanoscience Research Institute 
Rights: © 2022, The Author(s), under exclusive licence to The Materials Research Society. This version of the article has been accepted for publication, after peer review and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
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