Modification of Pigment Surfaces with Polymer Monolayers (English shop)

Preview

Table of Contents, Datei (130 KB)
Extract, Datei (180 KB)

Doungporn Sirikittikul’s dissertation explores the controlled surface modification of organic and inorganic pigments using polymer monolayers. The research investigates different approaches for attaching polymer chains through hydrogen bonding and covalent interactions. Functional polymer coatings are prepared by surface-initiated free-radical polymerization and copolymerization involving surface-bound monomers. The investigated materials include isoindoline pigments, titanium dioxide, and special-effect pigments. Particular attention is given to the influence of monomer concentration, polymerization time, and initiator density on polymer layer thickness and graft density. Surface characterization is performed using X-ray photoelectron spectroscopy and complementary analytical techniques. The findings demonstrate that covalently attached polymer layers enable controlled modification of pigment surface properties and significantly improve pigment stability against alkaline solutions.