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Citation: Xing-di Zhang, Guo-dong Dang, Dong-ji Wang. Synthesis and Characterization of a Flame-retardant and High-temperature Resistance Phosphorus-containing Poly(arylene ether)/Poly(arylene ether ketone) Copolymer[J]. Acta Polymerica Sinica, ;2016, (4): 449-456. doi: 10.11777/j.issn1000-3304.2016.15234 shu

Synthesis and Characterization of a Flame-retardant and High-temperature Resistance Phosphorus-containing Poly(arylene ether)/Poly(arylene ether ketone) Copolymer

1.
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, Changchun 130012

Corresponding author: Guo-dong Dang, dgd_tong@jlu.edu.cn
Received Date: 31 August 2015
Revised Date: 2 November 2015

A series of phosphorus-containing poly(arylene ether)/poly(arylene ether ketone) copolymers were synthesized by the nucleophilic substitution through changing the molar ratio of bis(4-chlorophenyl) phenyl phosphine oxide (BFPPO) and 4, 4'-difluoro diphenylmethanone (DFK).The copolymers with large side groups, twisted and noncoplanar conformation were readily soluble in a variety of organic solvents, such as DMF, DMSO and so on.The structure of the copolymers was confirmed by FTIR, 31P-NMR, 1H-NMR and 13C-NMR.The molecular weight and its distribution of copolymers were also investigated by GPC.Furthermore, the DSC test revealed that the glass transition temperature of the copolymers increased linearly with the BFPPO content increasing and the maximum can reach 270℃.Experimental results indicated that the polymers had good thermal stability, with the temperature at 5% weight loss of 494~498℃ and CR800 of 5.3%~11.8% at air atmosphere.Moreover, the copolymer films showed good mechanical properties with tensile strength of 74~95 MPa, tensile modulus of 2.3~2.6 GPa and elongation at break of 6.1%~9.0%.It was concluded that the polymers which kept good thermodynamic properties exhibited outstanding flame retardance due to the existence of triphenylphosphine-oxide moieties in the main chain.The UL94 of the copolymer films reached VTM-0 grade and the LOI values were up to 50% significantly.
- Polyetherketoneketone,
- Phenylphosphine oxide,
- Flame-retardant,
- Phosphorus-containing Polymers
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