Release-Controlling Performance of Porous Polymer M icrosphere Adsorbing Hydroquinone

Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (8): 37-40,65.

• Chemistry & Chemical Engineering • Previous Articles Next Articles

Release-Controlling Performance of Porous Polymer M icrosphere Adsorbing Hydroquinone

Li Lu Wen Xiu-fang Pi Pi-hui Cheng Jiang rang Zhuo-ru

Schol of Chemical and Energy Engineering,South China Univ.of Tech.,Guangzhou 5 10640, Guangdong,China

Received:2005-09-07 Online:2006-08-25 Published:2006-08-25
Contact: 李璐(1978-)，女，博士生，主要从事功能型多孔载体的研究 E-mail:lulu_lee@sinal00.com
About author:李璐(1978-)，女，博士生，主要从事功能型多孔载体的研究
Supported by:
广东省自然科学基金资助项目(05006556)

Abstract

Abstract:

Poly(styrene-divinylbenzene)(PSt-DVB)porous microspheres with a diameter of less than 1 5μm were prepared by means of the modified two-step seed swelling polymerization.Then,the adsorption and release of hy-droquinone on the produced porous microspheres were investigated an d the effects of microsphere size.pore diame-ter and adsorption capacity on the release rate were investigated in detail.Th e results indicate that both the de-crease in microsphere size and the increase in adsorption capacity result in a high release speed of hydroquinone from the microspheres,while the pore diameter has no obvious efect on the release of hydroquinone.Moreover,the concentration of hydroquinone changes little in a long period which shows that the produced PSt-DVB por0us mi-crospheres are of excellent release-controlling performance.

Key words: porous polymer microsphere, adsorption, active, hydroquinone, release controUing

Li Lu Wen Xiu-fang Pi Pi-hui Cheng Jiang rang Zhuo-ru. Release-Controlling Performance of Porous Polymer M icrosphere Adsorbing Hydroquinone[J]. Journal of South China University of Technology (Natural Science Edition), 2006, 34(8): 37-40,65.

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Release-Controlling Performance of Porous Polymer M icrosphere Adsorbing Hydroquinone

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