Adsorbents for Organic Dyes Based on PDMAEMA/POSS Hybrid Material via Thiol-Michael Addition Reaction

作者：Yang, Zhenglong^*; Fu, Kangyu; Yu, Jing; Liu, Xinyan

来源：Journal of Inorganic and Organometallic Polymers and Materials, 2019, 29(1): 59-65.

DOI：10.1007/s10904-018-0964-y

• POSS
• Stimuli-sensitive polymer
• Micelle
• Adsorbent for organic dye

The organic/inorganic hybrid material of poly[2-(dimethyl amino)-ethyl methacrylate]/polyhedral oligomeric silsesquioxane (POSS-PDMAEMA) was synthesized via a thiol-Michael addition reaction. The structures of POSS-PDMAEMA and its self-assembly in aqueous solution were confirmed by H-1-NMR, TEM, DLS, UV-Vis and fluorescence spectrum. In aqueous solutions, POSS-PDMAEMA could self-assemble into micelles and its critical micelle concentration was 12.4mg/L. POSS-PDMAEMA micelles can adsorb dyes efficiently, it could adsorb methyl red at a concentration of 10-100mg/L and dithizone at a concentration of 20-100mg/L, and could remove 98% methyl red and 90% dithizone within 30s. Due to the good temperature and pH responsiveness, POSS-PDMAEMA micelles could release organic dye absorbed into the organic solution again when the solution was heated to 40 degrees C or pH value of the solution was adjusted to 4.0. It suggested that POSS-PDMAEMA can be utilized as an interesting smart materials for absorption of organic dyes.

• 出版日期2019-1
• 单位同济大学