單一散度高分子螯合樹脂之製備及其性質之研究

Studies on the preparation and characterization of monodisperse polymeric chelating resins

蔡榮哲(Rweng-Je Tasi)

指導教授 ： 許克瀛

中原大學/工學院/化學工程研究所/碩士(2004年)

https://doi.org/10.6840/cycu200400513

摘要

本研究以分散聚合法及粒種乳化聚合法，製備具有單一散度微米級孔隙性聚縮水甘油甲基丙烯酸酯-三羥基甲醇丙烷三甲基丙烯酸酯共聚合顆粒作為基材，利用基材上的環氧基與不同種類螯合基(如：組織胺、2-胺甲基?啶、二唑、1,2,4-三唑、?唑及3,5-二甲基?唑)上的胺基進行開環反應而獲得螯合樹脂。其性質經由元素分析儀、FT-IR光譜儀或固態核磁共振光譜儀等儀器對樹脂改質成功與否加以判定及鑑定，且探討在各種吸附操作條件下對銅離子吸附量的影響。結果顯示，介於酸鹼值5.5~6.5間有最高吸附量，隨吸附溫度的提高，或銅離子濃度的增加，均會使銅離子吸附量隨之增加。在混合金屬離子溶液中，均對銅離子有較好選擇性。再生性方面，則沒有如預期般的佳。此外，吸附速率取決於樹脂與銅離子間的穩定常數之不同有關。固定單體相(單體及交聯劑)總量，改變單體與交聯劑彼此間的比例所製得共聚合顆粒，以組織胺進行改質後，對銅離子溶液作吸附測試，亦發現若GMA單體量增加時，其銅離子吸附量也就增加，或者以相同共聚合顆粒，用組織胺之不同莫耳劑量進行改質，同樣地，亦發現其莫耳劑量增加時，則吸附量也隨之增加。

關鍵字

分散聚合法，粒種乳化聚合法，單一散度，樹脂，螯合基，吸附

並列摘要

Monodisperse micro-sized porous poly(glycidylmethacrylate-co-trimethylolpropane trimethacrylate) copolymer particles were prepared by dispersion polymerization and seeded emulsion polymerization, used as polymeric substrate. These particles were modified by several kinds of the chelating group (as histamine, 2-(aminomethyl)pyridine, imidazole, 1,2,4-triazole, pyrazole and 3,5-dimethylpyrazole) via a ring-opening reaction, respectively, in which the epoxy group on glycidylmethacrylate reacted with the chelating group in solvent, to obtain chelating resins. The characterization were determined and indentified by EA, FT-IR spectrum and solid state NMR to see whether resins were modified successful or not, and investigate the effect of all kinds of adsorption operating conditions on the amount of adsorption of copper ion. From results of experiment, the highest amount of adsorption found in the range of the pH value was between 5.5 and 6.5, as the increase of the adsorption temperature and concentration of copper ion added, the amount of copper ion adsorption increased . In mixed metal ion solution, copper ion had better selectivity. Regeneration was not as good as what we expected. Besides, the rate of adsorption was depended on the difference of the stable constant betweeen resins and copper ion. Fixed the total amounts of monomers (monomer and crosslinking agent), then changed the ratio of the monomer to crosslinking agent, to obtain copolymer particles with different GMA content, if the amount of GMA monomer increased, amount of copper ion adsorption increased. Copolymer particles were modified by the different molar dose of histamine, similarly, it was found that as the molar dose was increased, the amount of copper ion adsorption was increased.

並列關鍵字

dispersion polymerization ； seeded emulsion polymerization ； resin ； adsorb ； chelating group ； monodisperse

參考文獻

5. J. Wiley, Sons, Syntheses and Separations Using Functional Polymers, Chap.10, 1988.

7. C. J. King, Separation Processes 2nd ed. New York, Mc Graw-Hill, 1980.

13. C. M. Cheng, F. J. Micale, J. W. Venderhoff, M. S. El-Aasser, Journal of Polymer Science Part A: Polymer Chemistry, 30 (1992) 235.

14. C. M. Cheng, J. W. Venderhoff, M. S. El-Aasser, Journal of Polymer Science Part A: Polymer Chemistry, 30 (1992) 245.

20. J. E. Rosenberg, P. Flodin, Macromolecules, 20 (1987) 1518.