Heat-resistant polysulfates and methods of their use

A compound of formula A:

• wherein:
• each ring A is optionally substituted at one or more of positions 2-5 with R1 such that the substitution at each of positions 2-5 is the same in each ring A;
• each ring B is indenyl, naphthyl, tetrahydronaphthyl, anthryl, or optionally substituted phenyl, which optional substitution is at one or more positions with R2 such that the substitution at each of the positions is the same in each ring B;
• when B is optionally substituted phenyl, bonds a and b are para and bonds a and c are ortho;
• when B is indenyl, bonds a and b are 4 carbons apart;
• when B is naphthyl or tetrahydronaphthyl, bonds a and b are 5 carbons apart;
• and when B is anthryl, bonds a and b are 7 carbons apart;
• each R1 is independently halo, methyl, CF3, cyano, phenyl, or SO2CH3;
• each R2 is independently halo, methyl, CF3, cyano, phenyl, or SO2CH3;
• X is absent when A is not optionally substituted phenyl;
• when A is optionally substituted phenyl, X is absent or is a bond, O, S, S(O), CH2, or C(CH3)2;
• n is the average number of repeating units in the polymer and is greater than 100;
• and
• and Y is OH, OTBS, or OSO2F;
• provided that:
• when each ring A is unsubstituted phenyl and X is absent or O, B is not unsubstituted phenyl;
• when each ring A is monosubstituted with R1 at position 4, R1 is Br, and X is absent, B is not unsubstituted phenyl;
• and when each ring A is unsubstituted phenyl, B is not naphthyl.

A method of preparing a dielectric polymer, which comprises:

• contacting a compound formula A(1):
• with a compound of formula A(2):
• in the presence of a catalyst under conditions sufficient to provide a dielectric polymer of formula I:
• wherein:
• each ring A is optionally substituted at one or more of positions 2-5 with R1 such that the substitution at each of positions 2-5 is the same in each ring A;
• each ring B is indenyl, naphthyl, tetrahydronaphthyl, anthryl, or optionally substituted phenyl, which optional substitution is at one or more positions with R2 such that the substitution at each of the positions is the same in each ring B;
• when B is optionally substituted phenyl, bonds a and b are para and bonds a and c are ortho;
• when B is indenyl, bonds a and b are 4 carbons apart;
• when B is naphthyl or tetrahydronaphthyl, bonds a and b are 5 carbons apart;
• and when B is anthryl, bonds a and b are 7 carbons apart;
• each R1 is independently halo, methyl, CF3, cyano, phenyl, or SO2CH3;
• each R2 is independently halo, methyl, CF3, cyano, phenyl, or SO2CH3;
• X is absent when A is not optionally substituted phenyl;
• when A is optionally substituted phenyl, X is absent or is a bond, O, S, S(O), CH2, or C(CH3)2;
• and
• n is the average number of repeating units in the polymer and is greater than 100;
• provided that:
• when each ring A is unsubstituted phenyl and X is absent or O, B is not unsubstituted phenyl;
• when each ring A is monosubstituted with R1 at position 4, R1 is Br, and X is absent, B is not unsubstituted phenyl;
• and
• when each ring A is unsubstituted phenyl, B is not naphthyl.