Study of the microstructure of TEOS-MTES based sol by SAXS
Xu, H; Xu, Y; Li ZH(李志宏); Li, ZH
刊名ACTA PHYSICO-CHIMICA SINICA
2005
卷号21期号:3页码:#REF!
关键词sol silica small angle X-ray scattering rheology
学科分类Chemistry
DOI10.3866/PKU.WHXB20050315
其他题名PVP改性氧化硅溶胶的微结构和流变性
通讯作者Xu, Y (reprint author), Taiyuan Inst Plast, Taiyuan 030024, Peoples R China.
文章类型Article
英文摘要Polymer-modified silica sols were synthesized by the ammonia-catalyzed hydrolysis of tetraethoxysilane with polyvinylpyrrolidone (PVP) as polymer modifier in methyl alcohol. By small angle X-ray scattering (SAXS), the microstructure was studied with the assistance of dynamic light scattering (DLS). The dependence of the particle size distribution, fractal characteristics, and the rheology of PVP-modified silica sols on the PVP content, ammonia content and water content in sols was analyzed. It is easy to form hydrogen bonds between the surface hydroxyls of silica particles and the negatively charged oxygen atoms of inner amide in PVP molecules, and this holds back the further growth of silica particles. Thus the gelation was retarded and the rheology of the sol was largely modified by PVP.
类目[WOS]Chemistry, Physical
收录类别SCI
WOS记录号WOS:000227894800015
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227507
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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Xu, H,Xu, Y,Li ZH,et al. Study of the microstructure of TEOS-MTES based sol by SAXS[J]. ACTA PHYSICO-CHIMICA SINICA,2005,21(3):#REF!.
APA Xu, H,Xu, Y,李志宏,&Li, ZH.(2005).Study of the microstructure of TEOS-MTES based sol by SAXS.ACTA PHYSICO-CHIMICA SINICA,21(3),#REF!.
MLA Xu, H,et al."Study of the microstructure of TEOS-MTES based sol by SAXS".ACTA PHYSICO-CHIMICA SINICA 21.3(2005):#REF!.
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