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题名: Preparation of VE microcapsules and its controlled release characteristics
作者: Bao, DC;  Hang, QG;  Liu, XD;  Ma, XJ;  Yuan, Q
关键词: membrane emulsification ;  drying in liquid ;  vitamin E ;  microcapsule ;  controlled release
刊名: ACTA PHYSICO-CHIMICA SINICA
发表日期: 2004-02-01
DOI: 10.3866/PKU.WHXB20040214
卷: 20, 期:2, 页:178-181
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Monodisperse polystyrene(PS) microcapsules containing vitamin E(VE) were prepared by membrane emulsification-dying in liquid technique. The diameter of microcapsules was about 4 times the size of the pore diameter of Shirasu porous glass (SPG) membrane, and the coefficient of variation (CV) of the microcapsule size was less than 0.2, showing a good monodispersity. Furthermore, the effects of the ratio of PS to VE ( m/m) and the diameter of microcapsules on the release characteristics were investigated. When the ratio of PS to VE ( m/m) is 40/1, the permeability coefficients were 0.71 x 10(-9) and 0.74 x 10(-9) m (.) s(-1) corresponding to the microcapsule diameters of 21.32 and 11.45 mum, and the concentrations of VE released were 8 and 12 mg (.) L-1 respectively, which conform to the optimal concentration in applications.
语种: 英语
WOS记录号: WOS:000189186400014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139517
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Biomed Mat Engn, Dalian 116023, Peoples R China
2.Bohai Univ, Sch Sci Chem & Food, Jinzhou 121000, Peoples R China

Recommended Citation:
Bao, DC,Hang, QG,Liu, XD,et al. Preparation of VE microcapsules and its controlled release characteristics[J]. ACTA PHYSICO-CHIMICA SINICA,2004,20(2):178-181.
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