Abstract
Abstract Hybrid latex particles of modified nano silica and polystyrene were prepared by seeded semibatch emulsion polymerization. The block copolymer of styrene (St) and vinyltrimethoxysilane was synthesized by reversible addition-fragmentation chain transfer polymerization using as a modifying agent for improving the silica dispersion property in St. In seeded semibatch emulsion polymerization, hybrid latex particles were prepared by feeding a monomer mixture or emulsion component that contained modified silica. The effects of the feeding material, feeding rate and SLS concentration of the emulsion components on the St conversion (instantaneous conversion and cumulative conversion), the resultant latex particles size, distribution and morphology were discussed. With the St monomer mixture at a 5.0 g/h feeding rate, the instantaneous conversion was approximately 75%, and the resultant latex particles Z average diameter and particle size distribution was 99.5 nm and 0.06, respectively. The modified silica was uniformly distributed at the seed latex surface. The prepared film surface exhibited more bright spots, and convex structures were observed by atomic force microscopy. The Si atom content was 2.5%, as measured by X-ray photoelectron spectroscopy.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
