Environmentally-Friendly Acrylates-Based Polymer Latices - Advanced Materials for Agriculture, Food and Environmental Safety - page 160

the feeding rate was 0.1 g/min, SDBS content was 0.15 and 0.2 wt% during
the core stage and shell stage, respectively. DVB contents were 1% during
the preparation of shell copolymers, and the monomer ratio of the core
particle to shell layer was 1:8.
Prior et al. [96] studied the ef ect of comonomer, i.e., vinyl versatate
(VV), BA, and EHA, on the colloid-stabilized VA polymers to assess their
impact on latex coating properties. h e VV showed advantages in scrub
resistance, gloss, hydrophobicity, and higher Tg; BA developed better wet
adhesion ei ciency, gel content and hiding ei ciency; EHA of ered perfor-
mance comparable to BA in hiding ei ciency, lowering copolymer Tg, and
gloss development. A combination of these monomers, in many instances,
af orded a better balance of performance properties than individual mono-
mers alone. In this study, a simplex-centroid design was utilized to statisti-
cally map polymer compositions for determining the ef ect of comonomer
composition on latex and paint i lm properties.
Similarly, Gower and Shank [97] studied the ef ect of varied monomer
composition on adhesive performance and peeling master curves for acrylic
pressure sensitive adhesive (PSA). h e synthesis and characterization of
a structured latex particle of acrylic copolymers and their peel adhesion
behavior were studied by Mayer et al. [98]. Bhabe et al. [99] studied the
synthesis and characterization of copolymer of MMA with other acrylate
comonomers such as EA or BA or 2-EHA and discussed its performance
as a PSA. h ey found that an increase in MMA concentration increases the
cohesive strength of the latex.
h e ef ect of functional monomer on the adhesive strength was also
reported by Ghosh and coworkers [100]. h ey studied the use of GMA for
developing crosslinkable PSA and reported that the peel strength increased
with an increase in the percentage of GMA in the copolymer composi-
tion. Pedraza et al. [101] studied the ef ect of functional monomers, i.e.,
2-HEMA and MAA, on the i lm properties of the polymer latex and found
that the mechanical properties of the polymer i lms increased with the
increase in carboxyl and hydroxyl functionality.
6.2.1.4 Crosslinking Monomer(s)
Multifunctional monomers, ot en known as crosslinkers, are usually
employed in free-radical polymerizations to produce polymer networks
which i nd applications in medicine, pharmaceuticals, paints, column
packing, optics, polymer additives, ion-exchange resins and rubbers. When
used in emulsion polymerization, crosslinkers allow control of particle
morphology and enhancement of the mechanical properties of latexes used