Hydrated Hydroxide Complex Dominates the AIE Properties of Nonconjugated Polymeric Luminophores. Issue 5 (15th January 2022)

• Record Type: Journal Article
• Authors: Yang, Taiqun; Zhou, Jiafeng; Shan, Bingqian; Li, Lei; Zhu, Chun; Ma, Chaoqun; Gao, Hui; Chen, Guoqing; Zhang, Kun; Wu, Peng
• Is Part Of: Macromolecular rapid communications. Volume 43:Issue 5(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-15
• Subjects: aggregation‐induced emissions -- hydrated hydroxide complexes -- nontraditional luminophores -- p‐band intermediate states; Macromolecules -- Periodicals; Polymers -- Periodicals; Chemistry -- Periodicals; 547.705
• DOI: 10.1002/marc.202100720
• Languages: English
• ISSNs: 1022-1336

Abstract

Abstract: Nontraditional intrinsic luminescence (NTIL) which always accompanied with aggregation‐induced emission (AIE) features has received considerable attention due to their importance in the understanding of basic luminescence principle and potential practical applications. However, the rational modulation of the NTIL of nonconventional luminophores remains difficult, on account of the limited understanding of emission mechanisms. Herein, the emission color of nonconjugated poly(methyl vinyl ether‐ alt ‐maleic anhydride) (PMVEMA) can be readily regulated from blue to red by controlling the alkalinity during the hydrolysis process. The nontraditional photoluminescence with AIE property is from the new formed p‐band state, resulting from the strong overlapping of p orbitals of the clustered O atoms through space interactions. Hydrated hydroxide complexes embedded in the entangled polymer chain make big difference on the clustering of O atoms which dominates the AIE property of nonconjugated PMVEMA. These new insights into the photoluminescence mechanism of NTIL should stimulate additional experimental and theoretical studies and can benefit the molecular‐level design of nontraditional chromophores for optoelectronics and other applications. Abstract : A photoluminescent nonconjugated polymer, (poly(methyl vinyl ether‐ alt ‐maleic anhydride)) with tunable emission wavelength from blue to red is successfully synthesized by controlling the alkalinity during the hydrolysis process. Hydrated hydroxide complexes embedded in the entangled polymer chain make big difference on the clustering of O atoms which dominates the aggregation‐induced emission property of nonconjugated polymeric luminophores.