The chelate resins(SDP, SDCMP, SDCEP) containing phosphoric acid group were synthesized from STR-DVB copolymer. The macroreticular type SDP chelate resin that was prepared by 15wt% DVB and 100 vol% iso-octane of monomer had better adsorption capacity for Cu(Ⅱ)ion than any other resin. SDP, SDCMP and SDCEP chelate resins showed high adsorption capacity for Pb(Ⅱ) and UO₂(Ⅱ). SDCMP and SDCEP chelate resins with spacer group had a little improved adsorption capacity for all metal ions except UO₂(Ⅱ) that SDP chelate resin that had no spacer group in restricted range. The adsorption rate of Cu(Ⅱ)ion was improved by the introduction of spacer group. Also, all chelate resins were thermally stable and the adsorption capacity for metal ions had not changed regardless of temperature.

STR-DVB공중합체로부터 인산형 킬레이트수지인 SDP, SDCMP, SDCEP를 각각 합성하였다. Macroreticular type SDP수지의 경우 합성조건은 DVB가 15wt%(모노머의), 희석제인 이소옥탄을 100vol%(모노머의) 사용하였을 때 Cu(Ⅱ)이온의 흡착이 우수하였다. 모든 수지는 Pb(Ⅱ), UO₂(Ⅱ)이온에 대해 높은 흡착능을 나타내었다. Spacer group을 가지는 SDCMP, SDCEP수지가 SDP수지에 비하여 spacer group을 도입함으로써 Cu(Ⅱ)이온 흡착속도를 크게 향상시킬 수 있었다. 또한 모든 수지는 비교적 좋은 열안정성을 가지며, 금속이온 흡착량도 온도 변화에 관계없이 거의 일정하였다.

Keywords: