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商品详细sigmaaldrichem/Bis(triphenyl-lambda5-phosphanylidene)ammonium hydrogendifluoride/2055837-32-4
sigmaaldrichem/Bis(triphenyl-lambda5-phosphanylidene)ammonium hydrogendifluoride/2055837-32-4
sigmaaldrichem/Bis(triphenyl-lambda5-phosphanylidene)ammonium hydrogendifluoride/2055837-32-4
商品编号: 2055837-32-4
品牌: sigmaaldrichem
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产地: Germany
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公司分类: Catalyst and Auxiliary
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商品介绍

Bifluoride salt reported by and colleagues as a catalyst for sulfur(VI) fluoride exchange SuFEx-based AA-BB polycondensation reactions to prepare polysulfonates with diverse structures, narrow polydispersity, and excellent thermal and hydrolytic stability. Bisalkylsulfonyl fluorides, the AA monomers, were prepared from ethenesulfonyl fluoride and amines/anilines while bisphenol bis(t-butyldimethylsilyl) ethers, the BB monomers, were synthesized using tert-butyldimethylsilyl chloride and bisphenols. Varying the amines, anilines, and bisphenols results in assorted polymeric backbones, including those bearing orthogonal side chains for modification post-polymerization (e.g. by CuAAC). Reaction is amenable to scale up.

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At Sigma-Aldrich, our purpose is to solve the toughest problems in life science by collaborating with the global scientific community – and through that, we aim to accelerate access to better health for people everywhere.We provide scientists and engineers with best-in-class lab materials, technologies and services. With the 2015 combination of EMD Millipore and Sigma-Aldrich, we now have a broad portfolio of 300,000 products and an expanded global footprint.We are dedicated to making research and biotech production simpler, faster and safer.https://www.sigmaaldrich.com/chemistry.html Process Capability :https://www.sigmaaldrich.com/united-states/about-us.htmlAfter-sale Service :https://www.sigmaaldrich.com/united-states/ordering.html