Abstract

The synthesis of monodisperse styrene and acrylic core-shell polymer particles by semi-continuous seeded emulsion polymerization processes was investigated. 120 and 140 nm homopoly(styrene) seed particles were made for each batch and monodisperse 300 and 400 nm core-shell particles were synthesized therefrom. Divinylbenzene and poly(dimethylsiloxane) were compositional variables that were studied as part of the synthesis. The addition of DVB significantly increased the gel content of the particles. The incorporation of poly(dimethylsilocane) appeared to plasticize the particles. The particle size, morphology, surface charge, molecular weight, percent gel content, and glass transition characteristics of the particles were evaluated. It was found that the surface charge of the particles was affected by increasing particle size and by incorporating poly(dimethylsiloxane) or acrylic functionality in the shell.

Library of Congress Subject Headings

Polystyrene; Acrylic acid; Emulsion polymerization; Latex, Synthetic

Publication Date

5-1-2004

Document Type

Thesis

Department, Program, or Center

Center for Materials Science and Engineering

Advisor

Kmiecik-Lawrynowicz, Grazyna

Comments

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: TP1180.S7G73 2004

Campus

RIT – Main Campus

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