A Proton-Transfer Probe of a Polymer-Water Interface. 2-Naphthol-Labeled Poly (isopropyl) acrylamide

S Linares-Samaniego, LM Tolbert

文献索引：Linares-Samaniego, Sandra; Tolbert, Laren M. Journal of the American Chemical Society, 1996 , vol. 118, # 41 p. 9974 - 9979

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被引用次数: 6

摘要

Phase transitions in poly (N-isopropylacrylamide)(PNIPAM) covalently labeled with a 2- naphthol were examined by steady-state and time-resolved spectroscopy. 2-Naphthol undergoes excited-state proton transfer (ESPT) at a rate that is dependent upon water concentration in aqueous solvent systems. Upon conversion to the phase-separated state in naphthol-labeled PNIPAM, the efficiency of excited-state proton transfer diminished, ...