申请人:SABIC GLOBAL TECHNOLOGIES B.V.
公开号:US20190211153A1
公开(公告)日:2019-07-11
A polyimide oligomer of the formula
wherein G is a group having a valence of t, each R is independently a C
1-30
divalent bridging group, a C
1-20
alkylene-X, or a C
6-30
arylene-X wherein —X is —O-M′, —C(O)O-M′, —OC(O)O-M′, —S-M′, —S(O)
2
-M′, —S(O)
3
-M′, —OS(O)
3
-M′, or —OP(O)
3
-M′ wherein each M′ is independently Li, Na, K, Cs, Mg, Ca, Sr, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Ge, Sn, Pb, As, or Sb, provided that at least one R is C
1-20
alkylene-X or C
6-30
arylene-X, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 1 to 6, and each n is independently 1 to 1,000, the total of all values of n is greater than 4, the polyimide oligomer is thermoplastic, and Q, M, D, and V are as provided herein.