Journal
POLYMER
Volume 84, Issue -, Pages 59-64Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2015.12.031
Keywords
Deoxybenzoin; Polysulfone; Heat release capacity
Categories
Funding
- BASF, Inc through the BASF-NORA alliance
- Federal Aviation Administration (FAA) [14-G-012]
- UMass Amherst Materials Research Science and Engineering Center on Polymers at UMass Amherst [NSF DMR-0820506]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0820506] Funding Source: National Science Foundation
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Novel poly(arylene ether) sulfones, sulfoxides, and sulfides containing deoxybenzoin subunits were synthesized by step growth polymerization involving bishydroxydeoxybenzoin (BHDB) and the corresponding sulfur-containing monomers. The isolated polymers demonstrated good solubility in organic solvents, making them easily processible into transparent, flexible, and creasable films upon solution casting. All of the polymers prepared exhibited exceptionally low flammability characteristics, with total heat release (THR) values as low as 6 J/g-K, and char yield values as high as 54%. Inclusion of deoxybenzoin monomers into polysulfones with 4,4'-biphenyl led to heat release capacity (HRC) values less than half that of commercial polysulfones in use today, placing deoxybenzoin-based polysulfones and polysulfoxides into the ultra-low flammability category. (C) 2015 Elsevier Ltd. All rights reserved.
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