Mechanism of Thermal Dgradetion of Aryl Bisphosphates and the Formation of Polyphosphates

摘要：

　　The thermal degradation of RDP and BDP has been studied comprehensively through 31p NMR, Q-TOF and GPC analyses.The thermal degradation of the bisphosphates begins with the elimination reaction that generates reactive acid phosphates, which eventually convert the bisphosphates into volatile triphenyl phosphate, oligomeric aryl/acid polyphosphates, and nonvolatile polyphosphoric acid through the intertwined condensations, transesterifications, and elimination reactions.It is these reactions and products that provide the bisphosphates effective pathways for entry into the vapor phase or action in the condensed phase, which are critical for the high efficiency of flame retardancy of RDP and BDP.A thermal Melvin rearrangement of the bisphosphates to β-hydroxylarylphospohnates has also been established.

作者: Chuanchuan Liu Qiang Yao

作者单位: Ningbo Institute of Materials Technology and Engineering, Ningbo, 315201, P.R.China;University of the Chinese Academy of Sciences, Beijing, 100049, P.R.China

会议类型: 国际会议

会议名称: 5th International Symposium on Flame-Retardant Materials & Technologies(ISFRMT 2018)(第五届阻燃材料与技术国际研讨会 )

会议地点: 杭州

会议语种:英文

页码: 34-35

在线出版日期: 2018-06-14（万方平台首次上网日期，不代表论文的发表时间）