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[J POLYM SCI POL CHEM] Cyclodextrin-Overhanging Hyperbranched Core-Double-Shell Miktoarm Architectures: Synthesis and Gradient Stimuli-Responsive Properties
作者:Wei Tian*, Xiaoyan Lv, Chengguang Mu, Weihong Zhang, Jie Kong, Yuyang Liu, Xiaodong Fan*
關(guān)鍵字:Cyclodextrin,Hyperbranched,Stimuli-Responsive Properties
論文來(lái)源:期刊
具體來(lái)源:JOURNAL OF POLYMER SCIENCE PART A: POLYMER CHEMISTRY 2012, 50, 759–771
發(fā)表時(shí)間:2012年

We report the synthesis and gradient stimuliresponsive properties of cyclodextrin-overhanging hyperbranched core-double-shell miktoarm architectures.Results show that this polymer possesses three-stage phase transition behaviors. The first-stage phase transition comes from the deprotonation of PDEAEMA segments at pH 9–10 aqueous solution under room temperature. The confined coil-globule conformation transition of PNIPAm and PDMAEMA arms gives rise to the second-stage hysteretic cophase transition between 38 and 44oC at pH 10. The third-stage phase transition occurs above 44oC at pH 10 attributed to the confined secondary conformation transition of partial PDMAEMA segments.

全文鏈接:http://onlinelibrary.wiley.com/doi/10.1002/pola.25831/abstract


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