氟表面活性剂和氟聚合物(Ⅵ)——“弱位点”氟表面活性剂的合成

doi:10.13218/j.cnki.csdc.2016.06.002

Abstract

Abstract: Recent strategies for synthesis of fluorosurfactants that may be potentially non-bioaccumulable were reviewed.These routes are devoted on:(ⅰ) preparation of CF₃-X-(CH₂)_n-SO₃Na [with X=O,C₆H₄O or N(CF₃) and n=8-12];(ⅱ) synthesis of fluorinated polyethers either by oligomerization of hexafluoropropylene oxide (HFPO) or by ring opening cationic oligomerization of fluorinated trimethylene oxide;(ⅲ) telomerization of vinylidene fluoride (VDF) with 1-iodoperfluoroalkanes to produce C_nF_2n+1-(VDF)₂-CH₂COOR (n=2 or 4,R=H or NH₄);(ⅳ) free radical telomerization of 3,3,3-trifluoro-propene (TFP) and 1-iodoperfluoroalkanes to prepare corresponding surfactants;(ⅴ) free radical co-telomerization of VDF and TFP in presence of 1-iodoperfluoroalkanes,or their controlled free radical co-polymerization in presence of fluorinated xanthate.The degradability and safety of these fluorinated ethers with weak point and their problems for being used as replacing products for PFOS and PFOA were summarized.

Key words: fluorinated polymer, weak point, synthesis, POPs, bioaccumulation, toxicity, degradation

CLC Number:

TQ423.4

XING Hang, CHEN Xian-tao, XIAO Jin-xin. Fluorinated surfactants and fluoropolymers (Ⅵ) Synthesis of fluorinated surfactants with weak point[J].China Surfactant Detergent & Cosmetics, 2016, 46(6): 309-313.

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Fluorinated surfactants and fluoropolymers (Ⅵ) Synthesis of fluorinated surfactants with weak point

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