After the compound (B) having an epoxy group is reacted with the hydrophilic resin (A), the compound (C) having an amino group is reacted to obtain an amino group-containing hydrophilic resin, and this resin is further polymerized. By coating on the support and immobilizing the sugar chain that adsorbs the virus, a substrate, instrument, gas barrier material and the like capable of efficiently removing the virus in the body fluid can be obtained.親水性樹脂(A)にエポキシ基を有する化合物(B)を反応させた後、アミノ基を有する化合物(C)を反応させ、アミノ基含有親水性樹脂を得た後、さらにこの樹脂を高分子支持体上に塗工し、ウイルスを吸着する糖鎖を固定化させることにより、効率的に体液中のウイルスを除去することが可能な基材、器具、ガスバリア材等が得られる。