Characterization of Molecular Structure of Emulsion Acrylic Microgels: Exploring the Impact of Molar Mass on Coating Properties of Self-Cross-Linkable Latexes. (21st November 2016)

• Record Type: Journal Article
• Authors: Machotova, Jana; Zgoni, Hedvika; Podzimek, Stepan; Stranska, Eliska; Pukova, Katerina
• Is Part Of: Polymer-plastics technology and engineering. Volume 55:Number 17(2016)
• Page Start: 1807
• Page End: 1818
• Publication Date: 2016-11-21
• Subjects: A4f -- chain transfer -- core–shell latex -- emulsion polymerization -- keto-hydrazide cross-linking -- molar mass distribution; Polymers -- Periodicals; Polymerization -- Periodicals; Polymers -- Periodicals; Engineering -- Periodicals; Plastics -- Periodicals; 668.9
• DOI: 10.1080/03602559.2016.1185662
• Languages: English
• ISSNs: 0360-2559

Abstract

ABSTRACT: Self-cross-linkable latexes of core–shell microgel particles were synthesized by the emulsion polymerization of acrylic monomers. The molar mass of copolymers forming the shell layer was gradually reduced by isooctyl 3-mercaptopropionate included in the synthesis of the shell layers. The molar mass distribution of latex particles was determined using size exclusion chromatography and asymmetric flow field-flow fractionation, respectively, both separation methods being coupled with a multiangle light scattering detector. The results confirmed theoretical predictions and described empirically the effects of molar mass of the shell layer copolymer on decreasing the minimum film-forming temperature and influencing the end-use properties of coatings. GRAPHICAL ABSTRACT: