Block coordination copolymers
The present invention provides compositions of crystalline coordination copolymers wherein multiple organic molecules are assembled to produce porous framework materials with layered or core-shell structures. These materials are synthesized by sequential growth techniques such as the seed growth technique. In addition, the invention provides a simple procedure for controlling functionality.
1. A process for separating a first component from a second component of a mixture comprising contacting the mixture with a coordination copolymer comprising at least a first region of a first coordination polymer having a first x-ray diffraction pattern and second region of a second coordination polymer having a second x-ray diffraction pattern wherein the first and second coordination polymers are not identical and wherein the x-ray diffraction pattern of the coordination copolymer comprises both the first x-ray diffraction pattern and the second x-ray diffraction pattern.
2. The process of claim 1 wherein the first coordination polymer and the second coordination polymer are present in a first and second layered configuration.
3. The process of claim 2 wherein the coordination copolymer further comprises at least a third coordination polymer layered on the second layer.
4. The process of claim 3 wherein the third coordination polymer is identical in composition to the first coordination polymer.
5. The process of claim 3 wherein the composition of the third coordination polymer is different from that of the first coordination polymer and the second coordination polymer.
6. The process of claim 3 wherein the third coordination polymer is identical in structure to the first coordination polymer.
7. The process of claim 3 wherein the structure of the third coordination polymer is different from that of the first coordination polymer and the second coordination polymer.
8. The process of claim 2 wherein the first and second layered configuration form a core and shell configuration.
9. The process of claim 8 further comprising at least a third coordination polymer layered on the shell.
10. The process of claim 8 wherein the first coordination polymer located in the core has a greater average pore size than the second coordination polymer located in the shell.
11. The process of claim 1 wherein the first component permeates the first coordination polymer while the second component does not permeate the first coordination polymer.
12. The process of claim 1 wherein the first component permeates the second coordination polymer while the second component does not permeate the second coordination polymer.
13. The process of claim 1 wherein the first component is retained by the coordination copolymer while the second component is not retained by the coordination copolymer.
14. The process of claim 13 further comprising desorbing the first component from the coordination copolymer.
15. The process of claim 14 wherein the desorbing involves contacting the coordination copolymer with a desorbent.