Preparation of PAM-ZnS Hybrid Microspheres with Core-Shell Structures

Abstract

Abstract: PAM-ZnS hybrid microspheres with diameters of 640-660 nm were fabricated in two simple steps: the formation of polyacrylamide(PAM) microspheres via the polymerization of acrylamide in the water phase of a water-in-toluene emulsion,and the sedimentation of ZnS at the inside or on the surface of the PAM microspheres in the emulsion via the reaction of Zn(AC)₂ and Na₂S or H₂S.ZnS@PAM and PAM@ZnS hybrid microspheres were obtained by the use of Na₂S and H₂S as the precipitating agent respectively.The hybrid microspheres were characterized with TEM and FTIR spectrum.The XRD results show that ZnS in the hybrid microspheres is in a crystalline state with a face-centered structure.The hybrid microspheres are photoluminescence-active due to the presence of ZnS.

Key words: Inverse emulsion polymerization, Organic-inorganic hybrid nano-materials, Core-shell structure, Polyacrylamide, Zinc sulfide

CLC Number:

O631
O648

TrendMD:

ZHANG Dan, SONG Xi-Ming, LIANG Fu-Xin, ZHANG Guo-Lin, ZHANG Jian-Jun, LI Ying, LIU Feng-Qi. Preparation of PAM-ZnS Hybrid Microspheres with Core-Shell Structures[J]. Chem. J. Chinese Universities, 2005, 26(11): 2170.

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Preparation of PAM-ZnS Hybrid Microspheres with Core-Shell Structures

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