Project Research Center for Fundamental Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
Chem Commun (Camb). 2018 Jun 21;54(51):7066-7069. doi: 10.1039/c8cc01776j.
We demonstrated a feasible method for providing polyrotaxanes (PRxs) with a controlled threading ratio of cyclic molecules and chain length of linear polymers by extending the linear polymers in the pseudo-PRx. This method gave PRxs with a lower threading ratio and a higher mobility of cyclic molecules compared to usual methods used previously with a high threading ratio. In addition, our PRx improved the thermal stability of the linear polymers in PRx despite the low threading ratio.
我们展示了一种可行的方法，可以通过扩展伪聚轮烷中的线性聚合物来提供具有受控环分子穿线比和线性聚合物链长的聚轮烷（PRx）。与以前使用高穿线比的常用方法相比，该方法得到的 PRx 具有较低的穿线比和较高的环分子迁移率。此外，尽管我们的 PRx 具有较低的穿线比，但它提高了 PRx 中线性聚合物的热稳定性。
