Polymercaptopolyphenyl and process for preparation thereof
申请人:——
公开号:US20040092775A1
公开(公告)日:2004-05-13
Novel di-, tri-, or tetra-thiols or thiolates of biphenyl, biphenyl derivatives, terphenyl or terphenyl derivatives, as represented by general formula (A), wherein M
1
and M
2
are each independently selected from the group consisting of H, Na, Li and K, and R
1
to R
7
are each H or an organic group, with the proviso that M
1
, M
2
and R
1
to R
7
may be the same or different from each other; E
1
and E
2
are SM
3
and SM
4
(wherein M
3
and M
4
are each selected from the same group as defined above for M
1
or M
2
) or each a group selected from among those as defined above for R
1
to R
7
; and n is 1 or 0, with the proviso that when n is 0, E
1
and E
2
are SM
3
and SM
4
.
1