?? ?????? ???????? ??? ???????? ??? N-Vinylpyrrolidone (NVP)? ?α-Pyrrolidone (2-P)? ?Vinylpyrrolidone Vinylimidazole Copolymer (????? VP/VI)? ?1-Vinylimidazole (NVI)? ?N-Methyl-Pyrrolidone (NMP)? ?N-Octyl-Pyrrolidone (NOP)? ?N-Ethyl-Pyrrolidone (NEP) ??????. ??????? ?????? ?? ?????????. ??????? ??? ?????? ?????????? ???????? ??? ???? ???? ?? ????? ???????? ????????? ????????? ??????? ??????? ????????? ????? ??????? ???????? ??? ??????? ??????? ????? ???????????. ??? ???? ??????? ??? NVP ????? ???? ??????? ?? ????? ??????????? ?? ??? ??????? α-Pyrrolidone ???? ???? ????? ?? ????? ??????? ?????????. ??? ??????? NMP ?NOP ??? ???? ???? ??????? ???????? ??? ???? ??????? ??????? ?????? ????? ?? ??????. ?????? ??? ???????? ?? ????? ?????? ?????? ????? ??????? ?????? ????? ???????? ????? ??????? ?????????? ???????.