Construction of polyrotaxanes via reversible chain exchange between acylhydrazone bonds.
By simply heating mixtures of alpha-cyclodextrins and dumbbell-like poly(ethylene glycol) derivatives at 120 degrees C, polyrotaxanes form spontaneously via reversible chain exchange between acylhydrazone bonds, which have been proven by analyses of diffusion-ordered NMR, WAXD, 1H NMR, solid-state 13C CP/MAS NMR, DSC and UV-Vis together.
Jiang
Yi
Y
School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai, 200240, People's Republic of China.
Wu
Jieli
J
He
Lin
L
Tu
Chunlai
C
Zhu
Xinyuan
X
Chen
Qun
Q
Yao
Yefeng
Y
Yan
Deyue
D