Soft Matter p. 6432 - 6443 (2015)
Update date:2022-08-17
Topics:
Bennevault
Huin
Gugan
Evgeniya
Qiu
Winnik
The host/guest interactions in water of a star polymer consisting of a β-cyclodextrin (β-CD) core bearing six poly(ethylene oxide) arms linked to the C6 positions of β-CD (β-CD-PEO7, Mn 5000 g mol-1) and α,ω-di-(adamantylethyl)poly(N-isopropylacrylamide) (Ad-PNIPAM-12K, Mn 12 000 g mol-1) were studied by 1D and 2D 1H and 13C NMR spectroscopy, isothermal calorimetry (ITC), and light scattering (LS). In cold water (T < 26°C) supramolecular "dumbbell" assemblies, consisting of PNIPAM chains with β-CD/Ad inclusion complexes at each end, formed via β-CD-insertion of the terminal Ads through the β-CD secondary face. Light scattering, microcalorimetry (DSC), and DOSY NMR studies indicated that mixed aqueous solutions of β-CD-PEO7 and Ad-PNIPAM-12K undergo a reversible heat-induced phase transition at ~32°C, accompanied by a release of a fraction of the Ad-bound β-CD-PEO7 into bulk solution and the formation of aggregated Ad-PNIPAM-12K stabilized by a β-CD-PEO7 shell.
View MoreShanghai HengXun Pharmaceutical Tech. Co., Ltd.
Contact:86-86-52730756
Address:Room 603, No. 240, Tianmuzhong Road, Zhabei, Shanghai, China
Shanghai Maxchemco Chemical Industry Co., Ltd.
Contact:(86)21-51079223
Address:No.1305-8, B241, the Ecust Park, Huajing Road, Xuhui District, Shanghai
Contact:0512-63006287
Address:no.88.YISHENG Road,etdz-WUJIANG,SUZHOU,CHINA
Shandong Xinke Petrochemical Co., Ltd.
Contact:+86-546-7277016
Address:Gudao Industrial Park, Hekou District, Dongying, Shandong Province, China
Nanjing Habo Medical Technology Co., Ltd.
Contact:025-85769882
Address:No.108. Ganjiabian east. Qixia District .Nanjing
Doi:10.1246/bcsj.39.1598
(1966)Doi:10.1016/j.dyepig.2017.04.006
(2017)Doi:10.1021/ja01024a032
(1968)Doi:10.1002/cbdv.201400060
(2014)Doi:10.1002/ejic.201300650
(2013)Doi:10.1023/B:RUJO.0000010202.77401.36
(2003)