Research progress in synthesis and applications of reactive DOPO⁃containing flame retardants

doi:10.19491/j.issn.1001-9278.2023.09.010

Abstract

CLC Number:

TQ323.5

ZHANG Cihai, LIU Song, ZHOU Dongqing, CHEN Yu, ZHANG Tingting, ZHONG Liu, LIU Zhiguo. Research progress in synthesis and applications of reactive DOPO⁃containing flame retardants[J]. China Plastics, 2023, 37(9): 64-74.

Figures/Tables 40

Fig.1. Synthesis route of DOPO

Fig.2. Equilibrium reaction of DOPO hydrolysis and HPPA dehydration

Fig.3. Tautomerism of DOPO

Fig.4. Reaction mechanism of DOPO with p⁃benzoquinone

Fig.5. Structure of DOPO⁃NQ and DOPO⁃TRIOL

Fig.6. Synthesis and structure of 2DOPO⁃OH

Fig.7. Structure of DOPO⁃APⅠ and DOPO⁃APⅡ

Fig.8. Synthesis principle and structure of DOPO⁃AMP

Fig.9. Synthesis principle and structure of DOPO⁃AC

Fig.10. Synthesis principle and structure of DOPO⁃HEA

Fig.11. Synthesis principle and structure of DOPO⁃TAPQ

Fig.12. DOPO⁃EPⅠ synthesis principle and structure

Fig.13. Synthesis route of DOPO⁃EPⅡ

Fig.14. Synthesis and structure of DOPO⁃EPⅢ

Fig.15. Structure of DOPO⁃EPⅣ

Fig.16. Synthesis principle and structure of DOPO⁃CAⅠ

Fig.17. Synthesis and structure of DOPO⁃CAⅡ

Fig.18. Synthesis principle and structure of DOPO⁃CAⅢ

Fig.19. Synthesis principle and structure of DOPO⁃PHM

Fig.20. Synthesis route and structure of DOPO⁃DTAⅠ

Fig.21. Synthesis route and structure of DOPO⁃DTAⅡ

Fig.22. Synthesis route and structure of DOPO⁃PBI

Fig.23. Synthesis route and structure of DOPO⁃DST

Fig.24. Synthesis principle of DOPO⁃HB and DOPO⁃PNⅠ resin

Fig.25. Synthesis principle of DOPO⁃BAⅠ and DOPO⁃PNⅡ resin

Fig.26. Synthesis principle and structure of DOPO⁃BAⅡ

Fig.27. Synthesis route and structure of DOPO⁃DMA flame retardant

Fig.28. Synthesis principle and structure of DOPO⁃TPDE

Fig.29. Synthesis principle and structure of DOPO⁃DPE

Fig.30. DOPO⁃TOP synthesis route

Fig.31. Synthesis route of DOPO⁃ITA

Fig.32. Polycondensation of polyester diol containing DOPO

Fig.33. DOPO⁃ITA forms imide and structure with primary amine

Fig.34. DOPO⁃ITA block PET copolyester reaction principle

Fig.35. DOPO⁃ITA block flame retardant epoxy resin

Fig.36. Esterification of DOPO⁃ITA with cellulose

Fig.37. Preparation of biobased polyester by polycondensation of DOPO⁃ITA with isosorbide

Fig.38. Reaction principle of DOPO⁃ITA flame retardant cellulose composite aerogel

Fig.39. Michael addition reaction of DOPO with maleic acid

Fig.40. DOPO⁃HPA synthesis principle and structure

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