a.Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
b.Department of Periodontology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
yaoyuan@ecust.edu.cn (Y.Y.)
xieyf1657@sh9hospital.org.cn (Y.F.X)
slin@ecust.edu.cn (S.L.L.)
收稿:2021-01-22,
修回:2021-3-1,
录用:2021-3-8,
网络首发:2021-05-25,
纸质出版:2021-07-18
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Tian, C.; Zhou, K. C.; Lu, Y. F.; Li, J. J.; Yao, Y.; Tao, X. F.; Zhuang, Q. X.; Xie, Y. F.; Lin, S. L. Hyperbranched azopolymer with quadruple responsibility. Chinese J. Polym. Sci. 2021, 39, 1169–1176
Chen Tian, Ke-Cong Zhou, Yu-Fei Lu, et al. Hyperbranched Azopolymer with Quadruple Responsibility[J]. Chinese Journal of Polymer Science, 2021, 39(9): 1169-1176.
Tian, C.; Zhou, K. C.; Lu, Y. F.; Li, J. J.; Yao, Y.; Tao, X. F.; Zhuang, Q. X.; Xie, Y. F.; Lin, S. L. Hyperbranched azopolymer with quadruple responsibility. Chinese J. Polym. Sci. 2021, 39, 1169–1176 DOI: 10.1007/s10118-021-2576-1.
Chen Tian, Ke-Cong Zhou, Yu-Fei Lu, et al. Hyperbranched Azopolymer with Quadruple Responsibility[J]. Chinese Journal of Polymer Science, 2021, 39(9): 1169-1176. DOI: 10.1007/s10118-021-2576-1.
Simply constructing multiple responsive polymers with obvious shape and dimension variations on their assemblies upon different stimuli is still rarely reported. In this study
we report a hyperbranched polymer named HPAzoBAHB-
star
-PEG
9
with quadruple-response to light
temperature
pH and oxidation stimuli. The polymer contains azobenzene chromophore
sulfide
amide and amine groups in its hydrophobic hyperbranched core
and the core is capped with hydrophilic polyethylene glycol (PEG
9
) arms. HPAzoBAHB-
star
-PEG
9
could assemble into unusual leaf-like lamellar micelles at 25 °C under the guidance of orderly arranged
H
-aggregate of azobenzene moieties. These leaf-like lamellar micelles can transform into vesicles upon UV irradiation and lower temperature
or convert to smaller spherical micelles in acidic or oxidative environments
respectively
with the destroy of ordered azobenzene arrangements. This quadruple-responsive hyperbranched polymer is suitable to construct multiple stimuli-responsive micro/nanostructures
or accurate delivery and release following subtle stimuli sequences.
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