Synthesis and structural investigation of 1′,3′,3′-trimethyl-6-hydroxy-spiro(2H-1-benzopyran-2,2′-indoline), 1′,3′,3′-trimethyl-6-methacryloyloxy-spiro(2H-1-benzopyran-2,2′-indoline) and a copolymer with methyl methacrylate by 1D and 2D NMR spectroscopy

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作者：
Moniruzzaman, M. [1 ]
Fernando, G.F. [1 ]
Bellamy, A.J. [2 ]
机构：
[1] Engineering Systems Department, Cranfield University, Shrivenham, Swindon, SN6 8LA England, United Kingdom
[2] Department of Environmental and Ordnance Systems, Cranfield University, Shrivenham, Swindon, SN6 8LA England, United Kingdom
来源：
European Polymer Journal | 2006年 / 42卷 / 06期
关键词：
Photo-responsive spiropyran-based compounds, such as, 1′,3′,3′-trimethyl-6-hydroxy-spiro(2H-1-benzopyran-2,2′-indoline) [OHSP], its monomer, such as 1′,3′,3′-trimethyl-6-methacryloyloxy-spiro(2H-1-benzopyran-2,2′-indoline) [MOSP] and its copolymers with methyl methacrylate [MMA] were synthesised using conventional synthetic routes. The copolymerisation was carried out either in tetrahydrofuran [THF] or in toluene using 2,2′-azobisisobutyronitrile [AIBN] as an initiator. The structures of these materials were investigated using 1H and 13C NMR spectroscopy. DEPT-135, HCCOSW and COSY45 NMR experiments were used to assign and interpret the complex structure of spiropyran based materials. © 2006 Elsevier Ltd. All rights reserved;
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页码：1455 / 1466
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