Narrowly dispersed molecularly imprinted microspheres prepared by a modified precipitation polymerization method

2008 ◽  
Vol 612 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Yuan Jin ◽  
Ming Jiang ◽  
Yun Shi ◽  
Yi Lin ◽  
Yan Peng ◽  
...  
Keyword(s):  
Precipitation Polymerization ◽  
Molecularly Imprinted ◽  
Polymerization Method ◽  
Molecularly Imprinted Microspheres

scholarly journals Molecularly imprinted microspheres prepared by precipitation polymerization at high monomer concentrations

2014 ◽  
Vol 2 (1) ◽  
pp. 1-17 ◽  
Author(s):  
Tibor Renkecz ◽  
Krisztina László ◽  
Viola Horváth
Keyword(s):  
Precipitation Polymerization ◽  
Solvent Ratio ◽  
Solvent Mixtures ◽  
Functional Monomer ◽  
Molecularly Imprinted ◽  
Functional Monomers ◽  
Crosslinked Polymer ◽  
Polymer Microparticles ◽  
Influential Parameters ◽  
Molecularly Imprinted Microspheres

AbstractHighly crosslinked polymer microparticles have been prepared by precipitation polymerization using high monomer loadings (≥25 v/v %) which generally would lead to bulk monoliths. The microparticle format was achieved by the use of non-solvating diluents either alone or in combination with co-solvents. Two distinct morphologies were observed. Monodisperse smooth microspheres were obtained using a thermodynamically good co-solvent whereas segmented irregular particles were formed with poorer co-solvents. It has been found that during polymerization the forming polymer particles were enriched in the co-solvent and this effect was more pronounced when good co-solvents were used. The type of functional monomer, crosslinker and co-solvent, and the non-solvent/co-solvent ratio were identified as influential parameters on the microparticle morphology. With the proposed methodology molecularly imprinted microparticles have been prepared successfully for three different templates, naproxen, diclofenac and toltrazuril using various functional monomers, crosslinkers and polymerization solvent mixtures.

Uiformly-Sized, Molecularly Imprinted Polymers for Naproxen by Precipitation Polymerization

2011 ◽  
Vol 399-401 ◽  
pp. 713-717 ◽  
Author(s):  
Xu Hong Jiang ◽  
Zhan Mei Liu
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Precipitation Polymerization ◽  
Polymer Microspheres ◽  
Functional Monomer ◽  
Molecularly Imprinted ◽  
Imprinted Polymers ◽  
Recognition Ability ◽  
Cross Linker ◽  
Average Size ◽  
Polymerization Method

Uniformly-sized, molecularly imprinted polymers (MIPs) for (D)-naproxen have been prepared by a precipitation polymerization method using methacrylic acid (MAA) as a functional monomer and divinylbenzene (DVB) as a cross-linker in acetonitrile or a mixture of toluene and acetonitrile(1:3). The (D)-naproxen-imprinted MAA-co-DVB polymers were monodispersed microspheres with size in the range of 1.5 to 3.6µm. Enantioseparation of naproxen was attained using the (D)-naproxen-imprinted MAA-co-DVB polymer microspheres. When Ethylene glycol dimethacrylate(EGDMA) was used as a cross-linker, the MAA-co -EGDMA polymers were sub-microspheres with the average size of 350nm and showed very low affinity for the template (D)-naproxen . The (D)-naproxen-imprinted MAA-co-DVB polymer microspheres prepared in the mixture of toluene showed the highest molecular recognition ability and with the biggest size of 3.6µm.

scholarly journals One-pot synthesis of magnetic molecularly imprinted microspheres by RAFT precipitation polymerization for the fast and selective removal of 17β-estradiol

RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10611-10618 ◽  
Author(s):  
Jinhua Li ◽  
Ruichen Dong ◽  
Xiaoyan Wang ◽  
Hua Xiong ◽  
Shoufang Xu ◽  
...  
Keyword(s):  
Precipitation Polymerization ◽  
Selective Removal ◽  
Selective Recognition ◽  
One Pot ◽  
Molecularly Imprinted ◽  
One Pot Synthesis ◽  
Synthesis Strategy ◽  
17Β Estradiol ◽  
Fast Removal ◽  
Molecularly Imprinted Microspheres

A one-pot synthesis strategy was developed to prepare magnetic molecularly imprinted microspheres for the selective recognition and fast removal of 17-beta-estradiol.

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