Preparation of polystyrene–polyisoprene core–shell nanoparticles for reinforcement of elastomers

Latex-formed core–shell nanoparticles composed of cross-linked polystyrene (PS) core and polyisoprene (PI) shell were successfully synthesized by means of a two-stage emulsion polymerization. The PS core possessed a Z-average diameter of 50.3 nm, and the PS–PI particles took a spherical shape with a...

Full description

Saved in:
Bibliographic Details
Published in:Composites. Part B, Engineering Engineering, 2012, Vol.43 (1), p.50-56
Main Authors: Lu, Ming, He, Bo, Wang, Liansheng, Ge, Wen, Lu, Qiuyu, Liu, Yakang, Zhang, Liqun
Format: Article
Language:English
Subjects:
A. Particle-reinforcement
A. Polymer-matrix composites (PMCs)
Applied sciences
Compounding
Core–shell polymeric nanoparticles
crosslinking
Density
Elastomers
energy
Exact sciences and technology
interphase
Latex
nanocomposites
Nanoparticles
Organic polymers
Physicochemistry of polymers
polymerization
Polymers with particular properties
Polystyrene resins
polystyrenes
Preparation, kinetics, thermodynamics, mechanism and catalysts
Reinforcement
rubber
Shells
tensile strength
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Latex-formed core–shell nanoparticles composed of cross-linked polystyrene (PS) core and polyisoprene (PI) shell were successfully synthesized by means of a two-stage emulsion polymerization. The PS core possessed a Z-average diameter of 50.3 nm, and the PS–PI particles took a spherical shape with a Z-average size of 50–70 nm in diameter. Shell thickness was controlled by varying isoprene loading. Necessary interphase interactions between the core and shell domains were also achieved by grafting and swelling polymerization. Latex compounding method was employed to prepare the filled elastomer compounds. As expected, the PS–PI core–shell nanoparticles exhibited excellent reinforcement to elastomeric matrix, enhancing the tensile strength of the styrene–butadiene rubber by approximately 400%. The lower density, better interfacial interactions, and latex compounding process would benefit the PS–PI nanoparticles reinforced elastomer nanocomposites in energy saving.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2011.04.030