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Citation: XU Ling, CHENG Bowen, REN Yuanlin. Preparation of 5,5-Dimethyl-2-phospha-1,3-dioxan-2-yl-allyl Phosphate[J]. Chinese Journal of Applied Chemistry, ;2011, 28(5): 605-607. doi: 10.3724/SP.J.1095.2011.00436 shu

Preparation of 5,5-Dimethyl-2-phospha-1,3-dioxan-2-yl-allyl Phosphate

XU Ling ^a ,
CHENG Bowen ^a,, ,
REN Yuanlin ^a,b

1.
a State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin 300160;
2.
b School of Textile, Tianjin Polytechnic University, Tianjin 300160

Corresponding author: CHENG Bowen,
Received Date: 29 July 2010
Available Online: 27 September 2010
Fund Project: 天津市自然科学基金资助项目(10JCZDJC22200) (10JCZDJC22200)

A novel reactive flame retardant,5,5-dimethyl-2-phospha-1,3-dioxan-2-yl-allyl phosphate,was synthesized by reacting neopentyl glycol,phosphorus oxychloride,allyl alcohol with sodium through two steps.The title compound was characterized by elemental analysis,FTIR,MS and ¹H NMR.The thermal properties of the title compound were studied by TG and DSC techniques.The results show that the synthesized compound is consistent with the expected structure.The yield of the compound is 55.5% with the molar ratio of allyl alcohol to sodium being 2:1,the reaction temperature being at 0℃ using an ice bath for 2 h at first,and then at 30℃ for 6 h.The TG curves show that the initial thermal decomposition temperature of the compound is about 130.2℃,and there is about 23% char residue left at 800℃,indicating that the title compound has a good thermal stability and a char forming capability.
- neopentyl glycol,
- phosphorus oxychloride,
- flame retardant,
- allyl alcohol,
- thermal property
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