Mechanism of particle formation, morphology and mechanical properties of hybrid and pure PMMA latexes prepared via Pickering and surfactant-free emulsion polymerization

Document Type : Research Article

Author
Amir Saeid Pakdel
Department of Resin and Additives, Institute for Color Science and Technology, Tehran
/amnc.2015.4.15.7
Abstract
In this study, mechanisms of formation and stabilization of particles synthesized via spontaneous
precipitation-emulsification Pickering emulsion polymerization and surfactant-free emulsion
polymerization are compared and the effect of initiator amount on the average particle
size is discussed. Moreover, the products of both methods and specially hybrid particles are
investigated based on morphology and situation of organic and inorganic phases via SEM, TEM
and local EDS analysis. Also, novel powder DMA method was utilized to study the dynamic
mechanical behaviour of neat polymer particles and hybrid structures and to describe the role
of inorganic Pickering stabilizer on such properties.
Keywords
Emulsion polymerization
Stabilization
Pickering emulsion
morphology
Mechanical properties