Synthesis and application of fluorinated epoxy compounds

被引：5
|
作者：
Li, Lingling [1 ,2 ]
Wang, Xia [2 ]
Li, Ying [2 ]
Dong, Qingzhi [1 ]
机构：
[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China
[2] Univ Shanghai Sci & Technol, Sch Mat Sci & Engn, Shanghai, Peoples R China
来源：
EMERGING MATERIALS RESEARCH | 2015年 / 4卷 / 01期
基金：
中国国家自然科学基金;
关键词：
catalysis; polymerization; synthesis;
D O I：
10.1680/emr.14.00035
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel fluorinated epoxy compound (FO) is synthesised via one-step method using potassium and sodium aqueous solutions as catalysts. The structure is characterised by Fourier transform infrared spectroscopy and electro spray ionisation-mass spectrometry. The effects of the reaction time and catalysts are measured. The results show that using sodium aqueous solutions can improve FO yield, and the optimal reaction time is 5 hours. Using FO as monomers, we obtain a new fluorinated polyether glycol with fluorinated side chain (FPO). The number-average molecular weight (Mn) of FPO is investigated. We find that the increase in Mn depends on the FO concentration; mixed solvent (dichloromethane/toluene) can have an impact on the number-average molecular weight and molecular weight distribution. Polymers with lower polydispersities lead to a decrease in the polymerisation reaction rate because toluene can decrease the FO activity.
引用
收藏
页码：102 / 107
页数：6
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