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Synthesis and characterization of a novel solid–solid phase change luminescence material
Author(s) -
Gu Xiaohua,
Xi Peng,
Cheng Bowen,
Niu Shuqing
Publication year - 2010
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.2787
Subject(s) - differential scanning calorimetry , materials science , luminescence , terephthalic acid , peg ratio , chemical engineering , ethylene glycol , phase (matter) , spectroscopy , polymer chemistry , organic chemistry , chemistry , polyester , composite material , thermodynamics , economics , physics , optoelectronics , finance , quantum mechanics , engineering
Because of the large energy storage and small temperature variation during the phase change process, phase change materials (PCMs) are attracting increasing attention. In this study, a novel solid–solid PCM was prepared by coordinating rare earth Eu 3+ ions to the carboxylate groups of a poly(ethylene glycol) (PEG) modified with two terephthalic acid groups. The structure and properties of the material were characterized using 1 H NMR, differential scanning calorimetry, infrared spectroscopy, gel permeation chromatograph and fluorescence spectroscopy. The coordination of Eu 3+ with the double‐carboxylated PEG material significantly improved both the enthalpy value of the phase change material and its light‐emitting properties. This paper describes the facile synthesis and characterization of a novel phase exchange luminescent Eu–PEG material. The light‐emitting characterizations show that this modified PEG material has both good phase change properties and excellent luminescent properties. Copyright © 2010 Society of Chemical Industry