Tao Kong, Jing Lin, Lin Ye, Ai-ying Zhang and Zeng-guo Feng
Polym. Chem., 2015,6, 5832-5837
DOI:
10.1039/C5PY00674K,
Communication
A twice ATRP protocol is developed for the preparation of water soluble single-chain stranded polyrotaxanes (PRs) by end-capping polypseudorotaxanes (PPRs) formed from γ-CDs with PHEMA-PPO-PEO-PPO-PHEMA using oligomers of MPC as a bulky stopper. It is shown that those threaded γ-CDs simultaneously reside on PHEMA and PEG segments to give access to both loose- and over-fit structured PR-based multi-block copolymers.