Nanothin polymer films with selective pores and method of use thereof

摘要

One aspect of the invention provides a nanothin polymer film having a plurality of pores defined solely by polymers of the polymer film. The pores have a uniform size. Another aspect of the invention provides a method of using a polymer film capsule with pores defined solely by the film described herein. The method includes: separating a mixture of chemicals having variable surface areas from the polymer film capsule by using a size exclusion column; collecting the polymer film capsule eluate from the size exclusion column; and determining a content of chemicals retained in the polymer film capsule by using UV/vis spectroscopy.