Isophthalate-Based Room Temperature Phosphorescence: From Small Molecule to Side-Chain Jacketed Liquid Crystalline Polymer
Isophthalate-Based Room Temperature Phosphorescence: From Small Molecule to Side-Chain Jacketed Liquid Crystalline Polymer
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DOI：
10.1021/acs.macromol.9b00171
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发表时间：
2019-03
期刊：
影响因子：
5.5
通讯作者：
Yan-Fang Zhang;Yuejiao Wang;Xiao-Song Yu;Yang Zhao;Xiang-Kui Ren;Jian-Feng Zhao;Jun Wang;Xuqiang Jiang;Wenying Chang;Jun-Feng Zheng;Zhenqiang Yu;Shuang Yang;E. Chen
中科院分区：
文献类型：
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作者：
Yan-Fang Zhang;Yuejiao Wang;Xiao-Song Yu;Yang Zhao;Xiang-Kui Ren;Jian-Feng Zhao;Jun Wang;Xuqiang Jiang;Wenying Chang;Jun-Feng Zheng;Zhenqiang Yu;Shuang Yang;E. Chen
Isophthalate with the simple chemical structure is identified as an effective phosphor for room temperature phosphorescent (RTP) materials. With −Br, −CH3, and −CH═CH2 at the 5-position of the benzene ring of didecyl isophthalate, the three crystalline small molecules of DDIP-Br, DDIP-CH3, and DDIP-CH═CH2 demonstrate ultralong RTP with lifetime of 236, 650, and 184 ms, respectively, although no specific interactions are recognized in the crystals. Radical polymerization of DDIP-CH═CH2 readily results in Poly-1, which is the first RTP liquid crystalline polymer. Direct attachment of isophthalate phosphor to every repeating unit of polyethylene backbone through a single carbon–carbon bond leads to a significant side-chain jacketing effect, greatly reducing the motion of phosphor moieties. Poly-1 renders a columnar LC phase constructed by parallel packing of the supramolecular column that is composed of two Poly-1 chains. In the column, the isophthalate phosphor is confined in between the core of polymer bac...
