Probability of Extreme Learning Machine Applications in Wastewater Treatment Operating Mode Recognition

Zhou, Song; Lei, Yuefeng

doi:10.14233/ajchem.2014.19003

Cited by 3 publications

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Polymerization in Ionic Liquids

Zhang

Behera

Hong

et al. 2015

Encyclopedia of Polymer Science and Technology

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Room temperature ionic liquids (RTILs) have proved over recent years to be useful and unique reaction media for a variety of chemical reactions. Faster reaction rates and better selectivities are often observed in RTILs as compared to those in common organic solvents. In addition to these advantages, the low volatility, nonflammability, and recycling potential also help RTILs become a preferred alternative reaction medium to meet environmental and other requirements. This is evidenced by the ever increasing number of papers published in this area every year and interesting and important discoveries. When conventional free radical polymerizations are carried out in RTILs, there is an increase in the propagation rate due to the high polarity of the RTIL and a decrease in the termination rate because of the high viscosity of the RTILs, and thus the overall reaction rate is greatly increased along with an increase in molecular weight. For living/controlled polymerization such as atom transfer radical polymerization and radical addition‐fragmentation and transfer, the reactions in RTILs are still controllable with faster reaction rates and easy separation of catalysts and/or ligands from the resulting polymers. Nearly all types of polymerization processes have now been successfully conducted in RTILs, often with advantageous effects.

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Polymerization in Ionic Liquids

Zhang

Behera

Hong

et al. 2015

Encyclopedia of Polymer Science and Technology

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Synthesis of spiropyran-containing random copolymer by atom transfer radical polymerization and its complexation with metal ions

Chen

Liu

Cui

et al. 2015

Designed Monomers and Polymers

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(2015) Synthesis of spiropyran-containing random copolymer by atom transfer radical polymerization and its complexation with metal ions, Designed Monomers and Polymers, 18:6, 574-582, DOI: 10.1080/15685551.2015 An amphiphilic random copolymer containing a monomer 2-(dimethylamino) ethyl methacrylate (DMAEMA) and a light-responsive unit 1′-(2-acryloxyethyl)-3′,3′-dimethyl-6-nitrospiro-(2H-1-benzopyran-2,2′-indoline) (SPMA) was synthesized by atom transfer radical polymerization. The solvatochromic and light responsive behaviors of the resulting P (SPMA-co-DMAEMA) copolymer in solution were investigated by UV-vis absorption spectroscopy. The 'negative' solvatochromism upon the increasing solvents polarity was observed. A strong absorption band was recorded at 589 nm in THF, while the lower values were found at 542 and 520 nm in methanol and water, respectively. Moreover, the random copolymer exhibited a good cycling performance by the alternating illumination with ultraviolet (UV) and visible (Vis) lights. Finally, we studied the complexation of zwitterionic merocyanine (MC) with divalent metal ions, and an obvious shift of the location for the maximum absorption peak was found upon addition of Co 2+ or Mn 2+ . A slight color change of the copolymer solution from blue to purple after complexation with Co 2+ or Mn 2+ was also observed and this phenomenon might provide a potential visual observation for the complexation of P(SPMA-co-DMAEMA) with different metal ions.

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Self-assembly and morphology transition of amphipathic spiropyran-based random copolymers to control drug release

Chen

Liu

et al. 2016

Designed Monomers and Polymers

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An amphipathic spiropyran-based random copolymer P(SPMA-co-DMAEMA) was synthesized by atom transfer radical polymerization, and the resulting copolymer was characterized by means of 1 H nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, and gel permeation chromatography. The self-assembly behaviors and morphology transition were systematically investigated under single and combined external environmental stimuli by transmission electron microscopy. With coumarin 102 as the model drug molecule, the selfassembly micelles were used to control drug loading, release, and re-encapsulation to some extent. The characterization results indicated the successful preparation of the spiropyran-based random copolymer P(SPMA-co-DMAEMA). The external stimuli had some influences on the morphology of the self-assembly aggregate, and the 'schizophrenic' behavior was interestingly found in this work. The drug release experiments showed the reversible loading and release process up to a point, which might expand the potential application domain of the amphiphilic spiropyran-based random copolymer in drug delivery.

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Probability of Extreme Learning Machine Applications in Wastewater Treatment Operating Mode Recognition

Cited by 3 publications

References 0 publications

Polymerization in Ionic Liquids

Polymerization in Ionic Liquids

Synthesis of spiropyran-containing random copolymer by atom transfer radical polymerization and its complexation with metal ions

Self-assembly and morphology transition of amphipathic spiropyran-based random copolymers to control drug release

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