Efficient NIR (near-infrared) luminescent ZnLn-grafted (Ln=Nd, Yb or Er) PNBE (Poly(norbornene))

Publication date: June 2017
Source:Journal of Luminescence, Volume 186
Author(s): Lin Liu, Hei-Ni Feng, Guo-Rui Fu, Bao-Ning Li, Xing-Qiang Lü, Wai-Kwok Wong, Richard A. Jones
Through the ring-opening metathesis polymerization (ROMP) of norbornene (NBE) with each of allyl-containing complex monomers [Zn(L)2(µ1-OAc)Ln(µ2-OAc)2] (Ln=La, 1; Nd, 2; Yb, 3; Er, 4 or Gd, 5; HL=4-allyl-2-(1H-benzo[d]imidazol-2-yl)-6-methoxyphenol), a series of ZnLn-grafted polymers Poly([Zn(L)2(µ1-OAc)Ln(µ2-OAc)2]-co-NBE) with desired physical properties were obtained, respectively. Within near-infrared (NIR) luminescent polymers, Poly(3-co-NBE) endows an attractive quantum yield of 1.47% in solid state, and exhibits an effective prevention of high-concentration self-quenching.

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