Paper Title:
Preparation of Nanoporous Mondispersed Silica Nanoparticles Films Using Poly(styrene)- Block-Poly( 2-Vinyl Pyridine) as Template
  Abstract

Nanoporous silica films were prepared through the templating of amphiphilic block copolymer, poly(styrene-2-vinyl pyridine) (PS-b-P2VP), and colloidal silica nanoparticles. The experimental and theoretical studies suggested that the intermolecular hydrogen bonding was existed between the colloidal silica nanoparticles and PS-b-P2VP. The miscible hybrid and the narrow thermal decomposition of the PS-b-P2VP led to nanopores in the prepared films from the results of TGA, AFM, and TEM. The effects of the loading ratio and P2VP chain length on the morphology and properties of the prepared nanoporous silica films were investigated. The TEM and AFM studies showed that the uniform pore morphology with pore size 10-15nm was prepared from a modest porogen loading level for the optimum intermolecular hydrogen bonding. The refractive index and dielectric constant of the prepared nanoporous films decreased with an increase in PS-b-P2VP loading. On the other hand, the porosity increased with an increasing PS-b-P2VP loading. This study demonstrated a methodology to control pore morphology and properties of the nanoporous silica films through the templating of PS-b-P2VP.

  Info
Periodical
Advanced Materials Research (Volumes 47-50)
Edited by
Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam
Pages
646-649
DOI
10.4028/www.scientific.net/AMR.47-50.646
Citation
Y. Y. Yu, W. C. Chien, S. T. Chen, "Preparation of Nanoporous Mondispersed Silica Nanoparticles Films Using Poly(styrene)- Block-Poly( 2-Vinyl Pyridine) as Template", Advanced Materials Research, Vols. 47-50, pp. 646-649, 2008
Online since
June 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hui Wang, Ling Ke Zeng
Abstract:Mullite fiber porous ceramic was prepared by forced liquid displacement forming and using Mullite precursor sols as binders. SEM studies...
809
Authors: Ruo Bing Han, Chun Lei Wan, Hui Wu, Wei Pan
Abstract:A novel templating method for preparing nanoporous materials has been developed. Spherical nickel phosphate particles synthesized through a...
1706
Authors: Gyun Tak Kim, Hoh Yeong Kim, Tae Jin Hwang, Heung Yeol Lee
Abstract:The adhesion enhancement effect of tetraethoxysilane (TEOS) addition to a silica-polyaniline composite film on ITO glass substrate was...
2771
Authors: Li Er Deng, Yong Sheng Wang, Ming Fu
Abstract:The ordered colloidal crystals were prepared by sedimentation of a solution of silica colloidal spheres of 298nm. Colloidal crystals were...
1645
Authors: Gang Chen, Chun Hua Yang
Chapter 1: Research on Nano-materials and Nanotechnology
Abstract:Gold nanoparticles (AuNPs) were attached to the surface of alumina particles by an in-situ immobilizing method. SEM and XPS analysis showed...
47