They need design guides for mass production ... “When we twist the fibre, the polymer chains become inclined and that changes the directions of contraction and expansion,” explains Takagi.

polymer chain or network. Covalent organic frameworks are typically synthesized using solvothermal conditions with high temperature and long reaction time. Here, the authors report a general and ...

"We observed that the polypseudorotaxane exhibited shrinking and extending motions driven by the shuttling of α-CD rings along the polymer chain.These movements mainly occurred in the exposed ...