Self-Assembly with Block Copolymers through Metal Coordination of SCS-Pd~(II)Pincer Complexes and Pseudorotaxane Formation

摘要

Poly(norbornene)-based block copolymers containing side chains of pal-ladated pincer complexes/dibenzo[24]crown-8 or palladated pincer complexes/di-benzylammonium salts were synthesized.Noncovalent functionalization was accomplished with their corresponding recognition units through simple 1:1 addition with association constants(K_a)greater than 10~5 M~(-1)-assembly processes were monitored by using both ~1NMR spectroscopy and isothermal titration calo-rimetry.In all cases,we found that the self-assembly of the recognition units along each polymer block does not preclude the self-assembly processes along the other block.