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Spectroscopic properties of polycarbonate and poly(methyl methacrylate) blends doped with Europium(III) acetylacetonate

被引：24
作者：
Bonzanini, R
Dias, DT
Girotto, EM
Muniz, EC
Baesso, ML
Caiut, JMA
Messaddeq, Y
Ribeiro, SJL
Bento, AC
Rubira, AF
机构：
[1] Univ Estadual Maringa, Dept Quim, BR-87020900 Maringa, Parana, Brazil
[2] Univ Estadual Maringa, Dept Fis, BR-87020900 Maringa, Parana, Brazil
[3] Univ Estadual Paulista, Inst Quim, BR-14801970 Sao Paulo, Brazil
来源：
JOURNAL OF LUMINESCENCE | 2006年 / 117卷 / 01期
基金：
巴西圣保罗研究基金会;
关键词：
polymer; Eu3+-beta-diketonate complex; photoacoustic spectroscopy; photoluminescence;
D O I：
10.1016/j.jlumin.2005.04.010
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Spectroscopic properties of blends formed by bisphenol-A polycarbonate (PC) and poly(methyl methacrylate) (PMMA) doped with Europium (III) acetylacetonate [Eu(acac)(3)], have been studied by photoacoustic spectroscopy (PAS) and photoluminescent (PL) spectroscopy. Emission and excitation spectra, excited state decay times, and quantum efficiency have been evaluated as well. PAS studies evidenced chemical interactions between the Europium complex and the PC/PMMA blend, which presented typical percolation threshold behavior regarding the Eu3+ content. PL spectra evidenced the photoluminescence of the Eu3+ incorporated into the blend. Photoluminescence property enhancement was observed for the composite in comparison with the precursor compound. Optimized emission quantum efficiency was observed for the 60/40 blend doped with 2% and 4% Europium (III) acetylacetonate. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：61 / 67
页数：7
相关论文
共 39 条
[1]   Thermal diffusivity and conductivity of PMMA/PC blends [J].
Agari, Y ;
Ueda, A ;
Omura, Y ;
Nagai, S .
POLYMER, 1997, 38 (04) :801-807
[2]   Processing, characterization and properties of conducting polyaniline-sulfonated SEBS block copolymers [J].
Barra, GMO ;
Jacques, LB ;
Oréfice, RL ;
Carneiro, JRG .
EUROPEAN POLYMER JOURNAL, 2004, 40 (09) :2017-2023
[3]   Luminescence properties of the layered niobate KCa2Nb3O10 doped with Eu3+ and La3+ ions [J].
Bizeto, MA ;
Constantino, VRL ;
Brito, HF .
JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 311 (02) :159-168
[4]   Effects of europium (III) acetylacetonate doping on the miscibility and photoluminescent properties of polycarbonate and poly(methyl methacrylate) blends [J].
Bonzanini, R ;
Girotto, EM ;
Gonçalves, MC ;
Radovanovic, E ;
Muniz, EC ;
Rubira, AF .
POLYMER, 2005, 46 (01) :253-259
[5]   POLYCARBONATE POLY(METHYL METHACRYLATE) BLENDS - THE ROLE OF MOLECULAR-INTERACTIONS ON MISCIBILITY AND ANTIPLASTICIZATION [J].
BUTZBACH, GD ;
WENDORFF, JH .
POLYMER, 1991, 32 (07) :1155-1159
[6]  
Carlos LD, 2000, ADV MATER, V12, P594, DOI 10.1002/(SICI)1521-4095(200004)12:8<594::AID-ADMA594>3.3.CO
[7]  
2-J
[8]   MISCIBILITY OF BISPHENOL-A POLYCARBONATE WITH POLY(METHYL METHACRYLATE) [J].
CHIOU, JS ;
BARLOW, JW ;
PAUL, DR .
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1987, 25 (07) :1459-1471
[9]   Spectroscopic properties and design of highly luminescent lanthanide coordination complexes [J].
de Sá, GF ;
Malta, OL ;
Donegá, CD ;
Simas, AM ;
Longo, RL ;
Santa-Cruz, PA ;
da Silva, EF .
COORDINATION CHEMISTRY REVIEWS, 2000, 196 :165-195
[10]   Blue, green and red fluorescence and energy transfer of Eu3+ in fluoride glasses [J].
Dejneka, M ;
Snitzer, E ;
Riman, RE .
JOURNAL OF LUMINESCENCE, 1995, 65 (05) :227-245
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