Compound comprising aromatic ring, polymer comprising same, and polyelectrolyte membrane using same

A compound comprising an aromatic ring represented by the following Chemical Formula 1:

• in Chemical Formula 1,
• A is a direct bond, S, O, NH, or SO2,
• B and Q are the same as or different from each other, and are each independently represented by the following Chemical Formula 2 or 3,
• n is an integer from 1 to 16,
• m, n1, and n2 are each an integer from 0 to 16,
• when n and m are each an integer of 2 or more, a plurality of structures in the parenthesis is the same as or different from each other,
• two to four of R1 to R5 are the same as or different from each other, and are each independently a hydroxy group or a halogen group, and the other(s) is/are hydrogen,
• R6 is selected from the group consisting of —SO3H, —SO3−M+, —COOH, —COO−M+, —PO3H2, —PO3H−M+, —PO32−2M+, and a group represented by the following Chemical Formula 4,
• in Chemical Formula 4,
• at least one of R7 to R9 is selected from the group consisting of —SO3H, —SO3−M+, —COOH, —COO−M+, —PO3H2, —PO3H−M+, and —PO32−2M+, and the others are hydrogen,
• is a moiety bonded to Q of Chemical Formula 1, and
• M is a Group 1 element.