| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an industrially advantageous solid acid catalyst with which a process such as neutralization or salt removal is not necessary for separation-recovery, and a target product is produced without producing unnecessary by-products while energy is conserved; to provide a solid acid having high proton conductivity and excellent heat resistance; and to provide a method of producing at low cost and with ease. <P>SOLUTION: The sulfonated hollow particles insoluble in a polar solvent, which is obtained by sulfonating an aromatic ring in an organic group of the hollow particles comprising crosslinked polysiloxane structure in which a carbon atom of the organic group is directly bonded to a silicon atom, provides a solid acid having high acid value and high sulfur content, and desired acidity is accurately and easily obtained by virtue of structural characteristics of the crosslinked organic siloxane structure. <P>COPYRIGHT: (C)2010,JPO&INPIT |
