FLUORINE-CONTAINING SULFONATED POLYPHENYLSILOXANE, ITS USE, PRODUCTION AND USAGE THEREOF

摘要

PURPOSE:To obtain the title compound excellent in water repellency and usable as an acid catalyst of easy catalyst separation giving high acid catalyst activity even in the presence of water by fluorination and sulfonation of polyphenylsiloxane. CONSTITUTION:The objective fluorine-contg. sulfonated polyphenylsiloxane catalyst made up of recurring unit of the formula [X is fluorine atom or (ether oxygen atom-contg.) 2-14C fluorine-contg. alkyl; n is integer: 1-5; m is integer: 1-3] can be obtained by fluorination and sulfonation of polyphenylsiloxane. Alternatively, the objective compound can be obtained either by sulfonation of a fluorine-contg. polyphenylsiloxane using a sulfonating agent or by fluorination of a sulfonic acid-introduced polyphenylsiloxane using a fluorine- contg. compound.