Soluble polyarylates containing phosphorus in main chains with thermal stability |
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| Authors: | Chenxu Tian Pengqing Liu Guangdou Ye Jianjun Xu |
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| Affiliation: | 1. State Key Laboratory of Polymer Materials Engineering (Sichuan University), College of Polymer Science and Engineering of Sichuan University, , Chengdu, 610065 China;2. College of Light Industry, Textile and Food Engineering, Sichuan University, , Chengdu, 610065 China |
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| Abstract: | A series of polyarylates containing phosphorus (pho‐PARs) were synthesized from bisphenol A with different molar ratios of bis‐(4‐carboxyphenyl) phenyl phosphine oxide (BCPPO) to terephthalic acid (TPA). When the contents of BCPPO are in the range of 0.4–1.0, the pho‐PARs are readily soluble in a wide range of organic solvents and have the glass transition temperatures of 243.0–260.4°C. The initial degradation temperatures of these pho‐PARs are all above 450°C and their char yields at 800°C under nitrogen atmosphere are in the range of 28.7–33.0%, suggesting they have excellent thermal stability. The results of TG‐FTIR and FT‐IR show the introduction of BCPPO change the decomposition model of the pho‐PARs. The limiting oxygen indexes are at a range of 30.7–34.5%, which suggests that the pho‐PARs are a kind of excellent inherent flame retardant materials. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 3521–3529, 2013 |
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| Keywords: | flame retardance mechanical properties thermal properties |
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