Polyarylether ketone imide adhesives
Aspects of the present disclosure generally describe polyarylether ketones and methods of use. In some aspects, a composition includes one or more polymers of formula (IV):
1. A polymer consisting of:
at least one of
wherein each R is independently
wherein each L is independently —CH 2 —, —(CH 3 ) 2 C—, —O—,—S—,—SO 2 — or —CO—, wherein each Q is independently —S—,—SO 2 — or —(CF 3 ) 2 C—, —O—, —(CH 3 ) 2 C—, and wherein each j is a positive integer; and
a capping agent selected from
or benzyl, wherein R′ is —H, halo, C1-C20 alkyl, or cyano, wherein the molecular weight of the polymer is between about 50 kDa and about 150 kDa.
2. The polymer of claim 1 , wherein the molecular weight of the polymer is between about 90 kDa and about 110 kDa.
3. The polymer of claim 1 , wherein the polymer is:
about 46 mol % of
about 5 mol % of benzyl capping agent; about 32mol % of and
and about 17 mol % of
4. The polymer of claim 3 , wherein the polymer is:
45. 58 mol % of
5.48 mol % of benzyl capping agent; 32.01 mol % of
and 16.92 mol % of
5. The polymer of claim 1 , wherein the polymer is:
about 23 mol % of
wherein m is a positive integer,
R is
j is 1,
about 29 mol % of
n is a positive integer,
about 24 mol % of
and
about 24 mol % of
6. A composition comprising:
(1) a fiber material; and
(2) a polymer consisting of:
at least one of
wherein each R is independently
wherein each L is independently —CH 2 —, —(CH 3 ) 2 C—, —O—, —S—,—SO 2 — or—CO—, wherein each Q is independently —S—, —SO 2 — or —(CF 3 ) 2 C—, —O—, —(CH 3 ) 2 C—, and wherein each j is a positive integer; and
a capping agent selected from
or benzyl, wherein R′ is —H, halo, C1-C20 alkyl, or cyano, wherein the molecular weight of the polymer is between about 50 kDa and about 120 kDa.
7. The composition of claim 6 , wherein the fiber material is selected from the group consisting of graphite, fiberglass, nylon, aramid polymers, and mixtures thereof.
8. The composition of claim 6 , wherein the polymer has a glass transition temperature between about 135° C. and about 190° C.
9. The composition of claim 6 , wherein the polymer has a melting temperature between about 200° C. and about 450° C.
10. The composition of claim 6 , wherein the molecular weight of the polymer is between about 90 kDa and about 110 kDa.
11. The composition of claim 6 , wherein the molecular weight of each moiety of the structure:
does not exceed about 3 kDa.
12. The composition of claim 11 , wherein R is selected from the group consisting of:
13. The composition of claim 11 , wherein R is selected from the group consisting of:
wherein each L is independently —CH 2 — or —(CH 3 ) 2 C—.
14. The composition of claim 6 , wherein a ratio of
is between about 1:1 and about 1:2.
15. The composition of claim 6 , wherein the moiety:
is greater than about 33 mol % of the molecular weight of the polymer, and n is a positive integer.
16. The composition of claim 15 , wherein the moiety:
is greater than about 50 mol % of the polymer.
17. The composition of claim 6 , wherein the polymer is a block copolymer.
18. The composition of claim 6 , wherein the polymer is a random copolymer.
19. A vehicle component including the composition of claim 6 .
20. The vehicle component of claim 19 , wherein the vehicle component is a tail cone, a panel, a coated lap joint between two or more panels, a wing-to-fuselage assembly, a structural aircraft composite, a fuselage body-joint or a wing rib-to-skin joint.