[J POLYM SCI POL CHEM] Cyclodextrin-Overhanging Hyperbranched Core-Double-Shell Miktoarm Architectures: Synthesis and Gradient Stimuli-Responsive Properties
writer：Wei Tian*, Xiaoyan Lv, Chengguang Mu, Weihong Zhang, Jie Kong, Yuyang Liu, Xiaodong Fan*
keywords：Cyclodextrin，Hyperbranched，Stimuli-Responsive Properties
source：期刊
specific source：JOURNAL OF POLYMER SCIENCE PART A: POLYMER CHEMISTRY 2012, 50, 759–771
Issue time：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