| Effect of Temperature-responsive Solution Behavior of PNIPAM-bPPEOMA-b-PNIPAM on Its Inclusion Complexation with α-Cyclodextrin |
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| 引用本文： | 王曦.Effect of Temperature-responsive Solution Behavior of PNIPAM-bPPEOMA-b-PNIPAM on Its Inclusion Complexation with α-Cyclodextrin[J].高分子科学,2015,33(3):456-464. |
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| 作者姓名： | 王曦 |
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| 作者单位： | The Key Lab for Fine Processing of Resources and Advanced Materials of Hunan Province,Hunan Normal University;National & Local Joint Engineering Lab. for New Petro-chemical Materials and Fine Utilization of Resources,Hunan Normal University |
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| 基金项目： | financially supported by the Hunan Normal University for providing start-up |
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| 摘 要： | The effect of temperature-responsive solution behavior of PNIPAM-b-PPEOMA-b-PNIPAM on its inclusion complexation with α-cyclodextrin was studied. The triblock polymer was prepared by reversible addition-fragmentation chain transfer(RAFT) polymerization and formed inclusion complexes(ICs) after selective threading of the PEO segment of the triblock polymer through the cavities of α-CD units. For comparison, PPEOMA homopolymer was prepared and the inclusion complexation with α-CD was also studied. The ICs were prepared with α-CD when the polymer was in different conformations by changing the temperature, and the formed ICs were characterized by XRD, 1H-NMR, TGA and DSC. The solutions of the ICs show temperature-responsive clear/turbid transition or fluidic emulsion/gel transition depending on the concentration of the α-CD added, and the stoichiometry determined by 1H-NMR and TGA indicates that the stoichiometry of EO to α-CD of the resulted ICs increases with increasing of temperature.
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| 关 键 词： | Temperature-responsibility Comblike triblock polymer Inclusion complexes |
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