Fluorinated oligomers having pendant bromine-containing moieties
Assignee3M Innovative Properties Company
InventorZai-Ming Qiu
Life of this patent
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Abstract
Described herein is an oligomer having a pendant bromine-containing moiety according to formula II and/or formula III; and combinations thereof; wherein X1, X2, and X3 are each independently selected from F, Cl, H, and CF3; R is a linear or branched linking group, which may be saturated or unsaturated, substituted or unsubstituted, and may comprise a heteroatom; each Z1 and Z2 is independently selected from F and CF3; n is 0 or 1; q is 0 or 1; and m is at least 2.
Claims20
A composition comprising an oligomer comprising a repeating unit selected from the group consisting of:
- (iii) and combinations thereof;
- wherein X1, X2, and X3 are each independently selected from F, Cl, H, and CF3;
- R is a linear or branched linking group, which may be saturated or unsaturated, substituted or unsubstituted, and may comprise a catenary heteroatom;
- each Z1 and Z2 is independently selected from F and CF3;
- n is 0 or 1;
- q is 0 or 1;
- and m is at least 2.
A method for making a fluorinated polysulfonyl bromide oligomer comprising:
- (i) providing a polysulfinate oligomer comprising a repeating unit according to Formula I:
- wherein X1, X2, and X3 are each independently selected from F, Cl, H, and CF3;
- R is a linear or branched linking group, which may be saturated or unsaturated, substituted or unsubstituted, and may comprise a catenary heteroatom;
- each Z1 and Z2 is independently selected from F and CF3;
- n is 0 or 1;
- q is 0 or 1;
- and m is at least 2;
- and M is a cation;
- and
- (ii) brominating the polysulfinate oligomer according to Formula I.
A method for making a fluorinated polybromide oligomer comprising:
- (i) providing a polysulfinate oligomer comprising a repeating unit according to Formula I:
- wherein X1, X2, and X3 are each independently selected from F, Cl, H, and CF3;
- R is a linear or branched linking group, which may be saturated or unsaturated, substituted or unsubstituted, and may comprise a catenary heteroatom;
- each Z1 and Z2 is independently selected from F and CF3;
- n is 0 or 1;
- q is 0 or 1;
- and m is at least 2 and M is a cation;
- (ii) brominating the sulfinate oligomer according to Formula I;
- and
- (iii) introducing an energy source.
Dependencies are inferred from the claim text.