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Citation: Wang Xiaomei, Yang Ping, Lu Yan, Zhang Ying, On Yuxiang. Synthesis and Flame Retardation Mechanism of Polyphenyl Phosphates[J]. Chinese Journal of Applied Chemistry, ;1999, 16(6): 86-88. shu

Synthesis and Flame Retardation Mechanism of Polyphenyl Phosphates

1.
a Institute of Crystal arterials, Shandong University, Ji'nan 250100;
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b Shandong Institute of Building Marterials, Ji'nan;
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c State Laboratory for Flame Retardation, Beijing University of Science and Technology, Beijing

Received Date: 1 March 1999
Available Online: 4 June 1999

Polyphenyl phosphates(PPP) were synthesized by solution polycondensation of phenylphosphate dichloride with biphenol in the presence of pyridine at room temperature.The optimum molar ratio for synthesis was n(-OH);n(-Cl);n(Py)=1.4:1.0:2.4.The structures of PPPs were confirmed by IR and ¹HMR.The PPPs with DP of 43~45 possessed good flame retardance(LOI 25.5).The flame retardant property of PPP towards epoxide resin E-44 has been discussed in relation to the DP of the polymers.
- Polyphenyl phosphate,
- synthesis,
- flame retardant,
- epoxide resin
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