Effect of controlled length acrylic acid-based electrosteric stabilizers on latex film properties

•Emulsion polymerization with PAA or PAA-co-PBA macroRAFT as stabilizers.•Effect of stabilizer on water sensitivity.•Effect of stabilizer on mechanical properties. Polymer latexes stabilized with different acrylic acid (AA) chain lengths (controlled by Reversible Addition–Fragmentation Chain Transfe...

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Bibliographic Details
Published in:European polymer journal 2014-10, Vol.59, p.122-128
Main Authors: González, Edurne, Paulis, María, Barandiaran, María Jesús
Format: Article
Language:English
Subjects:
Applied sciences
Chain transfer
Chains (polymeric)
Coalescing
Controlled radical polymerization
Copolymers
Electrosteric surfactant
Emulsion polymerization
Exact sciences and technology
Film properties
Latex
Mechanical properties
Organic polymers
Physicochemistry of polymers
Properties and characterization
Surfactants
Tensile strength
Water resistance
Water uptake
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Summary:•Emulsion polymerization with PAA or PAA-co-PBA macroRAFT as stabilizers.•Effect of stabilizer on water sensitivity.•Effect of stabilizer on mechanical properties. Polymer latexes stabilized with different acrylic acid (AA) chain lengths (controlled by Reversible Addition–Fragmentation Chain Transfer) were synthesized following different routes: Starting from poly(acrylic acid) (PAA) chains as surfactant precursors or starting from poly(acrylic acid)-block-poly(butyl acrylate) (PAA-b-PBA) copolymers as surfactants. In this last case, both the activated and deactivated copolymers were used. The final water resistance and mechanical properties of the films obtained from the different latexes was studied. The effect of the PAA chain length on the water resistance depended on the way the PAA was added to the latex, as homopolymer or as block copolymer. The effect on the coalescence of the particles was not significant, but the PAA length affected the final mechanical properties of the films, lowering them for longer PAA lengths.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2014.07.023