Preparation of SiO2@polystyrene@polypyrrole sandwich composites and hollow polypyrrole capsules with movable SiO2 spheres inside

Tongjie Yao; Quan Lin; Kai Zhang; Dengfeng Zhao; Hui Lv; Junhu Zhang; Bai Yang

doi:10.1016/j.jcis.2007.06.072

Preparation of SiO₂@polystyrene@polypyrrole sandwich composites and hollow polypyrrole capsules with movable SiO₂ spheres inside

Tongjie Yao
, Quan Lin
, Kai Zhang
, Dengfeng Zhao
, Hui Lv
, Junhu Zhang
, Bai Yang^*

^*Corresponding author for this work

College of Chemistry

Research output: Contribution to journal › Article › peer-review

72 Scopus citations

Abstract

In this paper, we describe a flexible method for preparing conducting building blocks: SiO₂@polystyrene@polypyrrole sandwich multilayer composites and hollow polypyrrole (PPy) capsules with movable SiO₂ spheres inside. First, SiO₂@polystyrene (PS) core/shell composites were synthesized, and then SiO₂@PS@PPy sandwich multilayer composites were prepared by chemical polymerization of pyrrole monomer on the surface of SiO₂@PS composites. Furthermore, hollow polypyrrole capsules with movable SiO₂ spheres inside were obtained after removal of the middle PS layer. The diameter of sandwich multilayer composites could easily be controlled by adjusting the dosage of pyrrole monomer. The conductivities of composites increased with the increase of PPy content. After the insulating PS layer was selectively etched, the conductivities of hollow capsules with movable SiO₂ spheres inside were much higher than those of the corresponding sandwich multilayer composites.

Original language	English
Pages (from-to)	434-438
Number of pages	5
Journal	Journal of Colloid and Interface Science
Volume	315
Issue number	2
DOIs	https://doi.org/10.1016/j.jcis.2007.06.072
State	Published - 15 Nov 2007
Externally published	Yes

Keywords

Building block
Polypyrrole (PPy)
Polystyrene (PS)
Sandwich multilayer composite
SiO

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10.1016/j.jcis.2007.06.072

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@article{b22850ea34a24575b2c3bb0b964bf296,

title = "Preparation of SiO2@polystyrene@polypyrrole sandwich composites and hollow polypyrrole capsules with movable SiO2 spheres inside",

abstract = "In this paper, we describe a flexible method for preparing conducting building blocks: SiO2@polystyrene@polypyrrole sandwich multilayer composites and hollow polypyrrole (PPy) capsules with movable SiO2 spheres inside. First, SiO2@polystyrene (PS) core/shell composites were synthesized, and then SiO2@PS@PPy sandwich multilayer composites were prepared by chemical polymerization of pyrrole monomer on the surface of SiO2@PS composites. Furthermore, hollow polypyrrole capsules with movable SiO2 spheres inside were obtained after removal of the middle PS layer. The diameter of sandwich multilayer composites could easily be controlled by adjusting the dosage of pyrrole monomer. The conductivities of composites increased with the increase of PPy content. After the insulating PS layer was selectively etched, the conductivities of hollow capsules with movable SiO2 spheres inside were much higher than those of the corresponding sandwich multilayer composites.",

keywords = "Building block, Polypyrrole (PPy), Polystyrene (PS), Sandwich multilayer composite, SiO",

author = "Tongjie Yao and Quan Lin and Kai Zhang and Dengfeng Zhao and Hui Lv and Junhu Zhang and Bai Yang",

year = "2007",

month = nov,

day = "15",

doi = "10.1016/j.jcis.2007.06.072",

language = "英语",

volume = "315",

pages = "434--438",

journal = "Journal of Colloid and Interface Science",

issn = "0021-9797",

publisher = "Academic Press Inc.",

number = "2",

}

TY - JOUR

T1 - Preparation of SiO2@polystyrene@polypyrrole sandwich composites and hollow polypyrrole capsules with movable SiO2 spheres inside

AU - Yao, Tongjie

AU - Lin, Quan

AU - Zhang, Kai

AU - Zhao, Dengfeng

AU - Lv, Hui

AU - Zhang, Junhu

AU - Yang, Bai

PY - 2007/11/15

Y1 - 2007/11/15

N2 - In this paper, we describe a flexible method for preparing conducting building blocks: SiO2@polystyrene@polypyrrole sandwich multilayer composites and hollow polypyrrole (PPy) capsules with movable SiO2 spheres inside. First, SiO2@polystyrene (PS) core/shell composites were synthesized, and then SiO2@PS@PPy sandwich multilayer composites were prepared by chemical polymerization of pyrrole monomer on the surface of SiO2@PS composites. Furthermore, hollow polypyrrole capsules with movable SiO2 spheres inside were obtained after removal of the middle PS layer. The diameter of sandwich multilayer composites could easily be controlled by adjusting the dosage of pyrrole monomer. The conductivities of composites increased with the increase of PPy content. After the insulating PS layer was selectively etched, the conductivities of hollow capsules with movable SiO2 spheres inside were much higher than those of the corresponding sandwich multilayer composites.

AB - In this paper, we describe a flexible method for preparing conducting building blocks: SiO2@polystyrene@polypyrrole sandwich multilayer composites and hollow polypyrrole (PPy) capsules with movable SiO2 spheres inside. First, SiO2@polystyrene (PS) core/shell composites were synthesized, and then SiO2@PS@PPy sandwich multilayer composites were prepared by chemical polymerization of pyrrole monomer on the surface of SiO2@PS composites. Furthermore, hollow polypyrrole capsules with movable SiO2 spheres inside were obtained after removal of the middle PS layer. The diameter of sandwich multilayer composites could easily be controlled by adjusting the dosage of pyrrole monomer. The conductivities of composites increased with the increase of PPy content. After the insulating PS layer was selectively etched, the conductivities of hollow capsules with movable SiO2 spheres inside were much higher than those of the corresponding sandwich multilayer composites.

KW - Building block

KW - Polypyrrole (PPy)

KW - Polystyrene (PS)

KW - Sandwich multilayer composite

KW - SiO

UR - https://www.scopus.com/pages/publications/34548861495

U2 - 10.1016/j.jcis.2007.06.072

DO - 10.1016/j.jcis.2007.06.072

M3 - 文章

AN - SCOPUS:34548861495

SN - 0021-9797

VL - 315

SP - 434

EP - 438

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 2

ER -

Preparation of SiO₂@polystyrene@polypyrrole sandwich composites and hollow polypyrrole capsules with movable SiO₂ spheres inside

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Keywords

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