When exporting a document contains the following lines, I'm gettng unnecessary symbols: What can i do to resolve this??
Carboxylic acids comprising perfluoropolyether chains, of formula:
T1—CFW1—O—Rf—CFW2—T2 (I)
wherein T1, T2, equal to or different from each other, are selected from the group formed of —CH2—B—Y—(COOH)n, —CH(CF3) O—Y(COOH)n, —F, —CF3, —C2F5, —(C2F4)Cl, wherein B=—O— or —S—; Y=C1—C20 alkylene chain, n=1-4; with the proviso that at least one of the