2015•Journal of Fujian Normal UniversityRequires access
Influence of Polymerization Process Condition on PNVFSM Latex Particle Size
Sun Yan-l
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Abstract
The N-vinylformamide-styrene copolymer( PNVFSM) was synthesized by soap-free latex copolymerization and characterized by FTIR and laser particle size analyzer.The influence of polymerization conditions( such as dosage of initiator,monomer ratio,total monomer mass fraction,reaction temperature,stirring speed) on particle size of PNVFSM latex was investigated.The latex particle size increases with the increase of total monomer mass fraction.The latex particle size decreases when appropriately increasing the reaction temperature,stirring speed and the dosage of initiator.The FTIR characterization results showed that the N-vinylformamide and styrene were both copolymerized in the polymerization.The relative deviation of testing latex particle size by the nano laser particle size analyzer is normally below 0.68%.