| 摘要 |
<p>A perfluorosulphonic acid polymer suitable for use as a catalyst contains units of the formula:
<Image id="ia01" he="5" wi="3" file="IMGA0001.TIF" imgContent="character" imgFormat="TIFF" inline="yes" /> (SO₃)<Sub>w</Sub>M(SO₃R)<Sub>z-w</Sub>] (I)
wherein M is a multivalent metal cation,
R is a C₁ to C₈ fluorinated alkyl group,
z is the valency of M, and
w is an integer having a value between 1 and z-1.</p><p>Also use of a polymer of formula (I) wherein M is aluminium as a catalyst in the production of glycol ethers by the reaction of an alkylene oxide and an alcohol. </p> |
