期刊
RSC ADVANCES
卷 2, 期 12, 页码 5075-5079出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ra20426f
关键词
-
资金
- Fundacao para a Ciencia e Tecnologia (FCT-Lisbon) [PTDC/QUI-QUI/102460/2008, PTDC/CTM/70513/2006, SFRH/BD/31085/2006, PEst-C/EQB/LA0006/2011]
- MIT-Portugal Program (Bioengineering Systems Focus Area)
- Fundação para a Ciência e a Tecnologia [SFRH/BD/31085/2006, PTDC/QUI-QUI/102460/2008, PTDC/CTM/70513/2006] Funding Source: FCT
Molecularly imprinted polymeric particles with molecular recognition towards Bisphenol A (BPA) were synthesized for the first time using the semi-covalent imprinting approach in supercritical carbon dioxide (scCO(2)). The material's affinity to BPA was achieved by co-polymerizing ethylene glycol dimethacrylate (EGDMA) with a template-containing monomer, Bisphenol A dimethacrylate (BPADM) in scCO(2). Bisphenol A is then cleaved from the polymeric matrix by hydrolysis with tetrabutylammonium hydroxide (n-Bu4OH) also in a supercritical environment, taking advantage of the high diffusivity of scCO(2). The selectivity of the molecular imprinted polymer (MIP) was assessed by evaluating its capability to bind BPA in comparison with progesterone and alpha-ethinylestradiol. In addition, the cross-linked particles were used to prepare a PMMA-based hybrid imprinted membrane by a scCO(2)-assisted phase inversion method. Results show that the incorporation of MIP particles was able to confer molecular affinity to BPA to the membrane and that at dynamic conditions of filtration, this imprinted porous structure was able to adsorb a higher amount of BPA than the corresponding non-imprinted hybrid membrane. Our work represents a valuable greener alternative to conventional methods, for the synthesis of affinity materials which are able to maintain molecular recognition properties in water.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据