HongZe Liang

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Name: 梁洪泽; HongZe Liang

Organization: Ningbo University , China

Department:

Title: Researcher/Professor(PhD)

TOPICS

Polymer

Stimuli Responsive Polymers PH Responsive Polymers Stimuli Responsive Polymers PH Responsive Polymers Temperature Responsive Polymers

Chemicals
References

Enhancing extraction ability by rational design of phosphoryl functionalized ionic liquids and mechanistic investigation on neodymium (III) extraction

Co-reporter:Junping WANG, Jieying ZHAO, Da FENG, Xinchun KANG, Yunyu SUN, Lingling ZHAO, Hongze LIANG

Journal of Rare Earths 2016 Volume 34(Issue 1) pp:83-90

Publication Date(Web):January 2016

DOI:10.1016/S1002-0721(14)60579-2

AbstractFour ionic liquids (ILs): 3-(diethoxyphosphoryl)propyl triphenylphosphinium hexafluorophosphate [Ph3PC3P(OEt)2][PF6] (IL-1), 3-(ethoxyphenylphosphoryl)propyl triphenylphosphinium hexafluorophosphate [Ph3PC3PPh(OEt)][PF6] (IL-2), 3-(diphenylphosphoryl)propyl triphenylphosphinium hexafluorophosphate [Ph3PC3P(Ph)2][PF6] (IL-3), and 3-(diethoxyphosphoryl)propyl triphenylphosphinium bis(trifluoromethanesulfonyl)imide [Ph3PC3P(OEt)2][NTf2] (IL-4) were synthesized and characterized by IR and 31P, 1H, 13C NMR spectroscopy. The liquid-liquid extraction of neodymium(III) by these phosphorus functionalized ionic liquids (PFILs) diluted with common room temperature ionic liquid 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [C6mim][NTf2] was studied. The extraction percentage of Nd(III) was measured as a function of various parameters, such as the initial pH of aqueous phase, equilibrium time, temperature, and concentration of PFIL extractant. The influence of the nature of diluents and salting-out reagents on extraction was also investigated. The results indicated that the extraction process was exothermical and the extraction percentage of Nd(III) by IL-1 was the highest among the PFILs investigated. A possible metal complexation mechanism was proposed for the present PFIL/IL extraction system. And the loaded Nd(III) ions by PFIL could be stripped completely from the ionic liquid phase by 1 mol/L nitric acid.Phosphorus functional ionic liquids (PFILs) have been successfully synthesized and used in Nd(III) extraction. The nature of the ionic liquid extractants determines the extraction behavior

pH and glucose dually responsive injectable hydrogel prepared by in situ crosslinking of phenylboronic modified chitosan and oxidized dextran

Co-reporter:Juan Li;Weiqiong Hu;Yajuan Zhang;Hui Tan;Xiaojun Yan;Lingling Zhao

Journal of Polymer Science Part A: Polymer Chemistry 2015 Volume 53( Issue 10) pp:1235-1244

Publication Date(Web):

DOI:10.1002/pola.27556

ABSTRACT

Injectable hydrogels with pH and glucose triggered drug release capability were synthesized based on biocompatible phenylboronic modified chitosan and oxidized dextran through the formation of covalent imine bond and phenylboronate ester. Rheological characterization demonstrated that the gelation rate was rapid, and the moduli of the hydrogels were able to be tuned with chemical composition as well as pH and glucose concentration of the polymer solution. Anticancer drugs could be incorporated inside the hydrogel through the in situ gel forming process and undergo a controlled release by altering pH or glucose concentration. The hydrogels had good biocompatibility with viable and proliferated cells cultured in the three dimensional matrix, and the cell proliferation was suppressed when a small amount of DOX was added, which is benefit for the application of the hydrogels as smart anticancer drug delivery system. © 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 1235–1244