PMID- 25562713
OWN - NLM
STAT- MEDLINE
DCOM- 20150929
LR  - 20150128
IS  - 1477-9234 (Electronic)
IS  - 1477-9226 (Linking)
VI  - 44
IP  - 6
DP  - 2015 Feb 14
TI  - Preparation, characterization, and properties of PMMA-doped polymer film 
      materials: a study on the effect of terbium ions on luminescence and lifetime 
      enhancement.
PG  - 2871-9
LID - 10.1039/c4dt03348e [doi]
AB  - Poly(methylmethacrylate) (PMMA) doped with Tb-based imidazole derivative 
      coordination polymer [Tb(3)(L)(mu(3)-OH)(7)].H(2)O(n) (1) (L = 
      N,N'-bis(acetoxy)biimidazole) was synthesized and its photophysical properties 
      were studied. The L'(L' = N,N'-bis(ethylacetate)biimidazole) ligand was 
      synthesized by an N-alkylation reaction process followed by ester hydrolysis to 
      produce ligand L. Polymer 1 and ligand L' have been characterized by (1)H NMR and 
      IR spectroscopy, elemental analysis, PXRD and X-ray single-crystal diffraction. 
      Coordination polymer 1 is the first observation of a CdCl(2) structure 
      constructed with hydroxy groups and decorated by ligand L in lanthanide 
      N-heterocyclic coordination polymers. In the 2D layered structure of 1, each Tb3 
      metal center is connected with three Tb1 and three Tb2 metal centers by seven 
      hydroxyl groups in different directions, resulting in a six-membered ring. After 
      doping, not only the luminescence intensity and lifetime enhanced, but also their 
      thermal stability was increased in comparison with 1. When 1 was doped into 
      poly(methylmethacrylate) (1@PMMA), polymer film materials were formed with the 
      PMMA polymer matrix (w/w = 2.5%-12.5%) acting as a co-sensitizer for Tb(3+) ions. 
      The luminescence intensity of the Tb(3+) emission at 544 nm increases when the 
      content of Tb(3+) was 10%. The lifetime of 1@PMMA (914.88 mus) is more than four 
      times longer than that of 1 (196.24 mus). All tau values for the doped polymer 
      systems are higher than coordination polymer 1, indicating that radiative 
      processes are operative in all the doped polymer films. This is because PMMA 
      coupling with the O-H oscillators from [Tb(3)(L)(mu(3)-OH)(7)].H(2)O(n) can 
      suppress multiphonon relaxation. According to the variable-temperature 
      luminescence (VT-luminescence) investigation, 1@PMMA was confirmed to be a stable 
      green luminescent polymer film material.
FAU - Zhang, Hui-Jie
AU  - Zhang HJ
AD  - Department of Chemistry, Harbin Institute of Technology, Harbin 150001, P. R. of 
      China. fanruiqing@hit.edu.cn ylyang@hit.edu.cn.
FAU - Fan, Rui-Qing
AU  - Fan RQ
FAU - Wang, Xin-Ming
AU  - Wang XM
FAU - Wang, Ping
AU  - Wang P
FAU - Wang, Yu-Lei
AU  - Wang YL
FAU - Yang, Yu-Lin
AU  - Yang YL
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Dalton Trans
JT  - Dalton transactions (Cambridge, England : 2003)
JID - 101176026
RN  - 0 (Imidazoles)
RN  - 0 (Ions)
RN  - 0 (Organometallic Compounds)
RN  - 0 (Polymers)
RN  - 06SSF7P179 (Terbium)
RN  - 7GBN705NH1 (imidazole)
RN  - 9011-14-7 (Polymethyl Methacrylate)
SB  - IM
MH  - Imidazoles/chemistry
MH  - Ions/chemistry
MH  - *Luminescence
MH  - Models, Molecular
MH  - Molecular Structure
MH  - Organometallic Compounds/chemical synthesis/*chemistry
MH  - Polymers/chemical synthesis/*chemistry
MH  - Polymethyl Methacrylate/*chemistry
MH  - Terbium/*chemistry
EDAT- 2015/01/07 06:00
MHDA- 2015/09/30 06:00
CRDT- 2015/01/07 06:00
PHST- 2015/01/07 06:00 [entrez]
PHST- 2015/01/07 06:00 [pubmed]
PHST- 2015/09/30 06:00 [medline]
AID - 10.1039/c4dt03348e [doi]
PST - ppublish
SO  - Dalton Trans. 2015 Feb 14;44(6):2871-9. doi: 10.1039/c4dt03348e.