Department of Materials Science and Engineering, Korea University, 5-1 Anam-dong, Seongbuk-gu, Seoul 137-713, South Korea.
ACS Nano. 2010 Mar 23;4(3):1612-8. doi: 10.1021/nn901525e.
A practical route to the production of solution phase transferable graphene sheets using ionic liquid polymers (PIL) as a transferring medium is developed. Chemically converted graphene sheets decorated with PIL were found to be stable against the chemical reduction and well dispersed in the aqueous phase without any agglomeration. Upon the anion exchange of the PIL on graphene sheets, these PIL-modified graphene sheets in aqueous phase are readily transferred into the organic phase by changing their properties from hydrophilic to hydrophobic.
开发了一种实用的方法，使用离子液体聚合物（PIL）作为传递介质，制备溶液相可转移的石墨烯片。研究发现，用 PIL 修饰的化学转化石墨烯片在化学还原过程中稳定，并且在水相中分散良好，没有任何团聚。通过在石墨烯片上进行 PIL 的阴离子交换，这些在水相中的 PIL 修饰的石墨烯片可以很容易地通过改变其亲水性到疏水性的性质，从水相转移到有机相。
