Preparation of polyethylene oxide single crystals via liquid gating technology and morphology design strategy
作者：Shi Li, Jihe Zhao,Xiao Wang, Zhihua Li, Xuefeng Gui,Jiwen Hu*, Shudong Lin, Yuanyuan Tu
關鍵字：polymers; AFM; liquid gating technology, single crystals
論文來源：期刊
具體來源：Acta Crystallographica Section B-Structural Science Crystal Engineering and Materials
發表時間：2021年
A novel type of liquid gating technology has been developed to prepare a polyethylene oxide (PEO) single-crystal film, and the crystal growth was observed via atomic force microscopy. The self-seeding method has been widely used in the preparation of polymer single crystals, but the mechanism through which single polymer crystals are formed via the combination of liquid gating technology and the self-seeding method remains unclear. To elucidate the mechanism of this process, a series of experiments were conducted in which a dilute polymer solution was sprayed onto a mica substrate to form a singlecrystal film through liquid gating technology to study the effect of the crystallization time on the morphology of a thiol PEO (mPEO-SH) crystal. Based on this research, it was found that liquid gating helps to prevent twinning during crystal growth. The combination of liquid gating and self-seeding technology thus provides a new strategy for polymer single-crystal growth.