Monomers, polymers formed from such monomers, and articles for biomaterial capture including such polymers, wherein the monomer is represented by the following general Formula (I): CH.sub.2═CR.sup.1—C(═O)—X—R.sup.2—Z—X.sup.3—NR.sup.3—C(═X2)-X.sup.1—R.sup.4, wherein: R.sup.1 is H or —CH.sub.3; R.sup.2 is a (hetero)hydrocarbylene; X is —O— or —NH—; X.sup.1 is —O—, —S—, —NH—, or a single bond; X.sup.2 is —O— or —S—; X.sup.3 is —O— or —NR.sup.5—; R.sup.4 is hydrogen, (hetero)hydrocarbyl, or —N(R.sup.3).sub.2; each R.sup.3 and R.sup.5 is independently hydrogen or a (hetero)hydrocarbyl; and Z is —C(═O)— or —NH—C(═O)—.

Provided is a production method comprising step A of reacting a compound represented by Formula (2):

##STR00001##

wherein R.sup.1, R.sup.2, and R.sup.3 are the same or different, R.sup.1 represents COR, R.sup.2 and R.sup.3 each represent a hydrogen atom or COR, and R.sup.4 represents a C.sub.1-C.sub.12 alkyl group or a C.sub.6-C.sub.12 aryl group; with a fluorinating agent containing IF.sub.5, an amine, and HF at 80 C. or lower throughout the reaction from the start to the end. This production method is capable of synthesizing a compound (N-fluoroalkylated hydrazine derivative) represented by formula (1):

##STR00002##

wherein R.sup.1, R.sup.2, and R.sup.3 are as defined above, wherein Rs are the same or different and each represents a C.sub.1-C.sub.12 alkoxy group optionally substituted with one or more substituents or a C.sub.6-C.sub.12 aryloxy group optionally substituted with one or more substituents.

Provided is a production method comprising step A of reacting a compound represented by Formula (2):

##STR00001##

wherein R.sup.1, R.sup.2, and R.sup.3 are the same or different, R.sup.1 represents COR, R.sup.2 and R.sup.3 each represent a hydrogen atom or COR, and R.sup.4 represents a C.sub.1-C.sub.12 alkyl group or a C.sub.6-C.sub.12 aryl group; with a fluorinating agent containing IF.sub.5, an amine, and HF at 80 C. or lower throughout the reaction from the start to the end. This production method is capable of synthesizing a compound (N-fluoroalkylated hydrazine derivative) represented by formula (1):

##STR00002##

wherein R.sup.1, R.sup.2, and R.sup.3 are as defined above, wherein Rs are the same or different and each represents a C.sub.1-C.sub.12 alkoxy group optionally substituted with one or more substituents or a C.sub.6-C.sub.12 aryloxy group optionally substituted with one or more substituents.