Effect of alkalinization on carboxylated latices prepared with various amount of a non-ionogenic hydrophilic comonomer 2-hydroxyethyl methacrylate

Authors
Horsky, J Quadrat, O Porsch, B Mrkvickova, L Snuparek, J
Citation
J. Horsky et al., Effect of alkalinization on carboxylated latices prepared with various amount of a non-ionogenic hydrophilic comonomer 2-hydroxyethyl methacrylate, COLL SURF A, 180(1-2), 2001, pp. 75-85
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
180
Issue
1-2
Year of publication
2001
Pages
75 - 85
Database
ISI
SICI code
0927-7757(20010515)180:1-2<75:EOAOCL>2.0.ZU;2-7
Abstract
Six latices of carboxylated styrene/butyl acrylate copolymers with 0-25% of 2-hydroxyethyl methacrylate (HEMA) were prepared by semicontinuous non-see ded emulsion polymerization and investigated by photon correlation spectros copy and viscometry. Although HEMA is non-ionogenic, it profoundly affects the latex behavior after alkalinization: both methods revealed that HEMA pr omotes an increase in hydrodynamic dimensions of dispersed particles. The i ncrease in viscosity due to incorporation of 10% of HEMA into the copolymer s can make more than one order of magnitude at high volume fractions. (C) 2 001 Elsevier Science B.V. All rights reserved.