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Preparation of Stable Miniemulsions of Poly(2‐ethyl hexyl acrylate‐co‐vinyl acetate)
Author(s) -
Fonseca Gabriela E.,
McKenna Timothy F.L.,
Dubé Marc A.
Publication year - 2010
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200900009
Subject(s) - pulmonary surfactant , sodium dodecyl sulfate , acrylate , vinyl acetate , monomer , particle size , butyl acrylate , materials science , ethyl acrylate , adhesive , polymer chemistry , factorial experiment , chemical engineering , chemistry , chromatography , polymer , organic chemistry , copolymer , statistics , mathematics , layer (electronics) , engineering
Summary: This paper presents the results of the preparation of miniemulsions as well as the subsequent copolymerizations of 2‐ethyl hexyl acrylate and vinyl acetate. The miniemulsions were prepared using a mixture of an anionic and a non‐ionic surfactant. Sodium dodecyl sulfate (SDS) was used as the anionic surfactant and two non‐ionic surfactants were studied: Triton X‐405 and Disponil A3065. The miniemulsions prepared with a 90/10 mol.‐% Disponil A3065 were able to reach a kinetically‐stable state to yield latexes with 43 wt.‐% solids content with a maximum change in the number of particles (N p ) with respect to the number of droplets (N d ) of ∼6%. A 2 3 factorial design was then used to discern the influence of monomer, chain transfer agent and surfactant concentration on the droplet size distribution (DSD) and particle size distribution (PSD). Pressure‐sensitive adhesive (PSA) properties were also examined.