Using N-isopropylacryl-amide (NIPAAm) thermo-sensitive function material asmonomer and nuclear track microporous membrane (NTMM) as baseline material

athermo-senstitive intelligent track membrane (TsITM) has been prepared by theover-oxidization and pre-irradiation grafting techniques. The TsITM can be used tomake a micro-switch controled by temperature and to adjust particle screening andosmosis. To obtain sul--micron responsive grafted track pores only a very thinthermo--sensitive layer is needed. The TsITM pores are capable of swelling andshrinking rapidly and respond more sensitively to temperature.