Pillar[5]arene‐Diketopyrrolopyrrole Fluorescent Copolymer: A Promising Recognition and Adsorption Material for Adiponitrile by Selective Formation of a Conjugated Polypseudorotaxane

• DOI: 10.1002/marc.201700161
• Publication Date: 2017-05-19T11:23:36Z
• Authors: Wei Cui; Hao Tang; Linxian Xu; Lingyun Wang; Herbert Meier; Derong Cao
• Keywords: Pillar

Conjugated pillar[5]arene‐diketopyrrolopyrrole copolymer ( P1 ) is synthesized by the copolymerization of a difunctionalized pillar[5]arene and diketopyrrolopyrrole‐based monomer, which shows large extinction coefficients (1.1 × 10 4 m –1 cm at 519 nm strong emission 587 nm. exhibits very host–guest binding affinity towards adiponitrile but low 1,4‐dihalobutane 1,4‐bis(imidazol‐1‐yl)butane. Such an enhanced selectivity first found in polypseudorotaxane between pillararene neutral guests organic solution successfully used for recognition adsorption formation ‐adiponitrile polypseudorotaxane. image