AbstractsBiology & Animal Science

A study of Particle Structure and Film Formation Mechanism on the Mechanical Properties of Synthetic Rubber Films

by Somjit Tungchaiwattana

Institution: University of Manchester
Year: 2014
Keywords: poly(Bd)/poly(Bd/MAA), core-shell, thermally triggered, thermoresponsive; microgels, pH responsive
Record ID: 1406778
Full text PDF: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:232661


This thesis investigated a new group of poly(Bd)/poly(Bd-co-MAA) core-shell particles that were ionically crosslinked and cast as nanostructured ionomer films from aqueous dispersions. The new group of poly(Bd)/poly(Bd-co-MAA) core-shell particles were studied for structure-property relationships and morphology. The covalent crosslinking content in the core and the shell were varied at constant ionic crosslinking. Stress-strain data showed control of the nanostructured films. The chain transfer agent used during the preparation of the nanoparticles core-shells was shown to independently tune the mechanical properties of the films. The poly(Bd)/poly(Bd-co-AN-co-MAA) core-shell particles were also studied morphology and structure-property relationships. The purpose of this study was to determine the effect of AN on film morphology and properties. ZnO was added to provide a source of Zn2+ in the films. The nanostructured films showed both similar and different results compared with poly(Bd)/poly(Bd-co-AN-co-MAA) films. FTIR data showed a new peak that was not present for the poly(Bd)/poly(Bd-co-MAA) films. DMTA data showed Tg values of the shell. Stress-strain data showed the elasticity results were higher than of poly(Bd)/poly(Bd-co-MAA) films. No No