A study of poly(butadiene/methacrylic acid) dispersions: From pH-responsive behaviour to the effects of added Ca2+

Particulate ionomer films prepared from dispersions of crosslinked polymer colloids: A structure–property study

“…Poly(Bd/MAA) dispersions were prepared using batch emulsion polymerisation. The procedure used has been described in detail elsewhere [1]. Poly(Bd/6MAA) was prepared using a co-monomer mixture containing 94 wt.% of Bd and 6 wt.% of MAA.…”

“…The gel content of the poly(Bd/ 6MAA) particles was measured as 11%. [1]. These may be (a) single multiplets or (b) clusters of multiplets.…”

“…The poly(Bd) based dispersions used for this study were characterised, the results are reported in detail elsewhere [1] and key parameters are shown in Table 1. A number of poly(Bd/MAA) polymer films were investigated in this study (See Table 2).…”

“…Our previous work [1] investigated the interactions of Ca 2+ with dispersed poly(Bd/MAA) particles in water. (Bd and MAA are butadiene and methacrylic acid, respectively.)…”

Study of pH-triggered heteroaggregation and gel formation within mixed dispersions

“…The apparent pK a was determined from the pH where the degree of neutralisation was 0.50 as described elsewhere [24]. Photon correlation spectroscopy (PCS) measurements were performed using a Brookhaven BI-9000 light scattering apparatus fitted with a 20 mW HeNe laser.…”