NETWORK ENCAPSULATION OF NANOMETER CaCO3

Your Location：

Home >

Browse articles >

NETWORK ENCAPSULATION OF NANOMETER CaCO3

Papers | Updated：2021-06-21

- NETWORK ENCAPSULATION OF NANOMETER CaCO3
- NETWORK ENCAPSULATION OF NANOMETER CaCO3
- 高分子科学（英文版） 2004年22卷第6期页码：573-579
- Affiliations：
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2004-12-20
- Accepted：
Scan QR Code
NETWORK ENCAPSULATION OF NANOMETER CaCO3[J]. 高分子科学（英文版）, 2004,22(6):573-579.

NETWORK ENCAPSULATION OF NANOMETER CaCO3[J]. 2004, 22(6): 573-579.
NETWORK ENCAPSULATION OF NANOMETER CaCO3[J]. 高分子科学（英文版）, 2004,22(6):573-579. DOI：

NETWORK ENCAPSULATION OF NANOMETER CaCO3[J]. 2004, 22(6): 573-579. DOI：

摘要

The encapsulation of stearic acid coated nanometer CaCO3 by a polystyrene (PS) network via emulsion polymerization is described

where -methacryloxypropyltrimethoxysilane (MPS) was used as an efficient crosslinker. The important factors such as the type and amount of surfactant and initiator and the content of CaCO3 are investigated as well as the role of MPS. It has been shown that little PS was extractable with only 0.6 wt% of MPS (relative to styrene). The cationic surfactant cetyl trimethylammonium bromide (CTAB) proved more effective than the anionic surfactant sodium dodecyl sulfonate (SDS). The yield rises

particles become smaller and size distribution broadens with increased amount of CTAB. It is also found that either 2

2'-azobis(isobutyronitrile) (AIBN) or ammonium persulfate (APS) is suitable for attaining high monomer conversion. With increased amount of CaCO3

the encapsulation ratio can be varied from 17.9 to 3.6

while monomer conversion and yield decrease slightly. FT-IR spectra of the products after extraction indicate tight encapsulation between PS and CaCO3

and TEM photographs of composite particles with well-defined core-shell structure give direct evidence of encapsulation.

Abstract

The encapsulation of stearic acid coated nanometer CaCO3 by a polystyrene (PS) network via emulsion polymerization is described

particles become smaller and size distribution broadens with increased amount of CTAB. It is also found that either 2

2'-azobis(isobutyronitrile) (AIBN) or ammonium persulfate (APS) is suitable for attaining high monomer conversion. With increased amount of CaCO3

the encapsulation ratio can be varied from 17.9 to 3.6

while monomer conversion and yield decrease slightly. FT-IR spectra of the products after extraction indicate tight encapsulation between PS and CaCO3

and TEM photographs of composite particles with well-defined core-shell structure give direct evidence of encapsulation.

关键词

Keywords

references

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

Advances in Polymer-based Circularly Polarized Luminescent Materials

Squaramide-directed Cooperative One-dimensional Assembly in Telechelic Polydimethylsiloxane for Hierarchical Network Formation

Enhanced Segment Mobility Promotes Stereocomplex Crystallization in Polymer Blends via Elevated Segmental Miscibility

End-group and Side-chain Dual-engineering of Selenium-fused Acceptors for 20.08% Efficiency Polymer Solar Cells with Low Energy Loss

Sequence-encoded Conformation Pathways in Viscoelastic Microphase Separation of Multiblock Copolymers